General Information About Hydrilla And Photosynthesis Biology Essay

General Information About Hydrilla And Photosynthesis Biology Essay All green parts of a plant have chloroplasts in their cells and can carry out photosynthesis. In most plants, however, the leaves have the most chloroplasts (about half a million per square millimeter of leaf surface) and are the major sites of photosynthesis. Their green color is from chlorophyll, a light-absorbing pigment in the chloroplasts that plays a central role in converting solar energy to chemical energy. Pp 109 (Campbell, N.A. et. Al. 2009 Many aquatic weed scientists consider Hydrilla verticillata the most problematic aquatic plant in the United States. This plant, native to Africa, Australia, and parts of Asia, was introduced to Florida in 1960 via the aquarium trade. Hydrilla is now well established throughout water bodies in the southern states where control and management costs millions of dollars each year. From 1980 to 2005, Florida alone spent $174 million on hydrilla control. On the West Coast, California, Washington, and Idaho all have limited populations of hydrilla. Managers in all three states are serious about eradicating these infestations. Washingtons hydrilla infestation, discovered in 1995 in two interconnected lakes in King County, is the only known occurrence of hydrilla in Washington and eradication efforts are ongoing. Hydrilla is also increasingly being discovered in the northern tier states and in the Midwest.    Habitat Hydrilla forms dense mats of vegetation that interfere with recreation and destroy fish and wildlife habitat. Hydrilla has several advantages over other plants. It will grow with less light and is more efficient at taking up nutrients than native species. It also has extremely effective methods of propagation. Besides making seeds (seedlings are actually rarely seen in nature), it can sprout new plants from root fragments or stem fragments containing as few as two whorls of leaves. Recreational users can easily spread these small fragments from water body to water body.    However, hydrillas real secret to success is its ability to produce structures called turions and tubers. (Presence of these structures is also a characteristic that distinguishes this species from similar looking plants.) Turions are compact and produced along the leafy stems. They break free from the parent plant and drift or settle to the lake bottom to start new plants. They are generally about a quarter inch long, dark green, and appear spiny. Tubers are underground and form at the end of roots. They are small, potato-like or pea-like, and are usually white or yellowish. Hydrilla produces an abundance of tubers and turions in the fall and the tubers may remain dormant for several years in the sediment. The hydrilla variety found in Washington will also make tubers in the spring and will produce non-dormant turions throughout the growing season. Tubers and turions can withstand ice cover, drying, herbicides, and ingestion and regurgitation by waterfowl. One square meter of hydril la can produce 5,000 tubers!  Ã‚  Ã‚   There are two varieties of hydrilla in the United States. Many of the plants in the southern United States are all one sex (female) and are dioecious. Dioecious plants cannot produce seed. The plants in Washington are monoecious (having both male and female flowers on the same plant) and can produce seed. In New Zealand, where hydrilla is not native, the hydrilla plants are all male. Generally, the northern-most populations of hydrilla in the United States are monoecious. Although the hydrilla in Idaho is dioecious, all of Idahos dioecious hydrilla populations are associated with warmer geothermal-influenced waters. Monoecious hydrilla looks and grows somewhat differently than dioecious hydrilla. It tends to have a delicate appearance and sprawls along the lake bottom. The tubers from these monoecious plants are smaller than tubers produced by their southern female relatives. Management Hydrilla is a federally listed noxious weed, listed as a Class A weed on Washingtons Noxious Weed List, and is on the Washington State Department of Agricultures Quarantine list. Weed scientists suspect that some of the hydrilla infestations in California resulted from hydrilla tubers hitch hiking on mail order water lily rhizomes. Plant managers also speculate that Washingtons only hydrilla infestation in Pipe and Lucerne Lakes near Seattle also resulted from contaminated water lilies. Non-native water lilies were once common in these two lakes (before lake managers started herbicide treatments for hydrilla). Since the hydrilla discovery in 1995 in Pipe and Lucerne Lakes, there have been no other reports of hydrilla in Washington. State and local governments (King County and the cities of Covington and Maple Valley) are working together to eradicate the hydrilla infestation by using a combination of an aquatic herbicide called fluridone and diver and snorkeler hand removal. This is a multi-year ongoing effort because hydrilla tubers are long-lived and they do not all sprout at once. Prior to herbicide treatments (started in 1995) hydrilla densely covered the bottom of Pipe and Lucerne Lakes and had started to grow over the tops of Eurasian watermilfoil plants also in the lakes. As of 2009, surveyors have not detected any hydrilla plants in Lucerne Lake since 2004 and no hydrilla plants in Pipe Lake since 2006.    Identification Hydrilla closely resembles two other aquatic plants found in Washington: The non-native plant Brazilian elodea Egeria densa and the native plant American waterweed Elodea canadensis. You can distinguish hydrilla from these look-alike species by the presence of tubers (0.2 to 0.4 inch long, off-white to yellowish, pea-like structures buried in the sediment). Neither Brazilian elodea nor waterweed has tubers. Other characteristics to look for include:    Leaves in whorls around the stem (generally five leaves per whorl). Serrations or small spines along the leaf edges. The midrib of the leaf is often reddish when fresh. We are especially concerned about new introductions of hydrilla in the Pacific Northwest. If you think that you have seen hydrilla growing in Washington, please contact Kathy Hamel ([emailprotected]) or Jenifer Parsons ([emailprotected]) immediately.   The hydrilla line drawing is the copyright property of the University of   Florida Center for Aquatic Plants (Gainesville). Used with permission.   Follow This Link for Technical Information About Hydrilla Trouble in Paradise: Factors that Impact Coral Health Part C: Impact of Climate Change on Coral Reefs Scientists monitor coral health in a variety of ways. Sometimes they are able to take direct measurements, but at other times they must rely on remote measurements taken by satellites or on indicators such as ocean temperature or the presence of algal blooms algal blooms: the rapid excessive growth of algae, generally caused by high nutrient levels. Algal blooms can result in decreased oxygen in a body of water when the algae die, threatening the health of local marine life.. The rise of global temperatures due to increased levels of greenhouse gases-namely carbon dioxide- in the atmosphere is a major concern around the world. But did you know that as the amount of CO2 in the atmosphere increases, the amount of CO2 in the oceans rises as well? In fact, estimates indicate that the oceans have absorbed as much as 50% of all CO2 released into the atmosphere by human activity since 1750. What does this mean for ocean life and coral reefs in particular? Explore what happens to the ocean when CO2 content increases. Show me materials needed for this experiment Hide 300 mL bromothymol blue (a dye used as an acid-base indicator) aqueous solution 500 mL beaker drinking straw Pour the bromothymol blue solution into the beaker. Observe the color of the solution. Show me more information about bromothymol blue solution Hide When a bromothymol blue solution is neutral (like pure distilled water) it will appear green. If the solution is slightly basic, the solution will appear blue. If the solution is acidic, it will appear yellow. Bromothymol Blue pH indicator dye in an acidic, neutral, and alkaline solution (left to right). Take a drinking straw and place it into the solution. Exhale through the straw into the solution. BE CAREFUL NOT TO INHALE ANY OF THE SOLUTION! Keep blowing into the solution until you see a change in color. Checking In What happened to the bromothymol blue solution when you added carbon dioxide? Stop and Think 1: Based on what you observed in the experiment, what do you think the effect of increased carbon dioxide levels has on the ocean? What consequences might this have for coral reefs? Look at the image below showing the oceans involvement in Earths carbon cycle. http://serc.carleton.edu/eslabs/corals/5c.html Hydrilla From Wikipedia, the free encyclopedia Jump to: navigation, search Hydrilla Scientific classification Kingdom: Plantae (unranked): Monocots Order: Alismatales Family: Hydrocharitaceae Genus: Hydrilla Rich. Species: H. verticillata Binomial name Hydrilla verticillata (L.f.) Royle in Lotus Pond, Hyderabad, India. Wikimedia Commons has media related to: Hydrilla verticillata Hydrilla (Esthwaite Waterweed or Hydrilla) is an aquatic plant genus, usually treated as containing just one species, Hydrilla verticillata, though some botanists divide it into several species. Synonyms include H. asiatica, H. japonica, H. lithuanica, and H. ovalifolica. It is native to the cool and warm waters of the Old World in Asia, Europe, Africa and Australia, with a sparse, scattered distribution; in Europe, it is reported from Ireland, Great Britain, Germany, and the Baltic States, and in Australia from Northern Territory, Queensland, and New South Wales.[1][2][3] Foliage detail It has off-white to yellowish rhizomes growing in sediments at the water bottom at up to 2 m depth. The stems grow up to 1-2 m long. The leaves are arranged in whorls of two to eight around the stem, each leaf 5-20  mm long and 0.7-2  mm broad, with serrations or small spines along the leaf margins; the leaf midrib is often reddish when fresh. It is monoecious (sometimes dioecious), with male and female flowers produced separately on a single plant; the flowers are small, with three sepals and three petals, the petals 3-5  mm long, transparent with red streaks. It reproduces primarily vegetatively by fragmentation and by rhizomes and turions (overwintering buds), and flowers are rarely seen.[2][4][5][6] Hydrilla has a high resistance to salinity (>9-10ppt) compared to many other freshwater associated aquatic plants. The name Esthwaite Waterweed derives from its occurrence in Esthwaite Water in northwestern England, the only English site where it is native, but now presumed extinct, having not been seen since 1941.[7] Hydrilla closely resembles some other related aquatic plants, including Egeria and Elodea. [edit] Status as an invasive plant Hydrilla is naturalised and invasive in the United States following release in the 1960s from aquariums into waterways in Florida. It is now established in the southeast from Connecticut to Texas, and also in California.[8] By the 1990s control and management were costing millions of dollars each year. Hydrilla can be controlled by the application of aquatic herbicides and it is also eaten by grass carp, itself an invasive species in North America. Insects used as biological pest control for this plant include weevils of genus Bagous and the Asian hydrilla leaf-mining fly (Hydrellia pakistanae). Tubers pose a problem to control as they can lay dormant for a number of years. This has made it even more difficult to remove from waterways and estuaries. As an invasive species in Florida, Hydrilla has become the most serious aquatic weed problem for Florida and most of the U.S. Because it was such a threat as an invasive species, restrictions were placed, only allowing a single type of chemical, fluridone, to be used as an herbicide. This was done to prevent the evolution of multiple mutants. The result is fluridone resistant Hyrdilla. As hydrilla spread rapidly to lakes across the southern United States in the past, the expansion of resistant biotypes is likely to pose significant environmental challenges in the future. [9] This abundant source of biomas is a known hyperaccumulator of Mercury, Cadmium, Chromium and Lead, and asuch can be used in phytoremediation.[10] shttp://en.wikipedia.org/wiki/Hydrilla  · This page was last modified on 12 February 2010 at 10:35.  · Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. See Terms of Use for details. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. Bromothymol blue From Wikipedia, the free encyclopedia Jump to: navigation, search Bromothymol blue IUPAC name[hide] 4,4-(1,1-dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis(2-bromo-6-isopropyl-3-methylphenol) Identifiers CAS number 76-59-5  Y PubChem 6450 SMILES   [show] CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)Br)O)C(C)C)C(C)C)O)Br Properties Molecular formula C27H28Br2O5S Molar mass 624.38 g molà ¢Ã‹â€ Ã¢â‚¬â„¢1 Density 1.25 g/cm3 Melting point 202  Ã‚ °C, 475  K, 396  Ã‚ °F Acidity (pKa) 7.10 Supplementary data page Structure and properties n, ÃŽÂ µr, etc. Thermodynamic data Phase behaviour Solid, liquid, gas Spectral data UV, IR, NMR, MS   Y  (what is this?)  Ã‚  (verify) Except where noted otherwise, data are given for materials in their standard state (at 25  Ã‚ °C, 100  kPa) Infobox references Bromothymol blue (also known as bromothymol sulfone phthalein, Bromthymol Blue, and BTB) is a chemical indicator for weak acids and bases. The chemical is also used for observing photosynthetic activities or respiratory indicators (turns yellow as CO2 is added). Bromothymol blue acts as a weak acid in solution. It can thus be in protonated or deprotonated form, appearing yellow and blue respectively. It is bluish green in neutral solution. It is typically sold in solid form as the sodium salt of the acid indicator. It also finds occasional use in the laboratory as a biological slide stain. At this point it is already blue, and a drop or two is used on a water slide. The cover slip is placed on top of the water droplet and the specimen in it, with the blue coloring mixed in. It is sometimes used to define cell walls or nuclei under the microscope. Bromothymol blue is mostly used in measuring substances that would have relatively low acidic or basic levels (near a neutral pH). It is often used in managing the pH of pools and fish tanks, and for measuring the presence of carbonic acid in a liquid. A common demonstration of BTBs pH indicator properties involves exhaling through a tube into a neutral solution of BTB. As carbon dioxide is absorbed from the breath into the solution, forming carbonic acid, the solution changes color from green to yellow. Thus, BTB is commonly used in middle school science classes to demonstrate that the more that muscles are used, the greater the CO2 output. Bromothymol is also used in obstetrics for detecting premature rupture of membranes. Amniotic fluid typically has a pH > 7.2, bromothymol will therefore turn blue when brought in contact with fluid leaking from the amnion. As vaginal pH normally is acidic, the blue color indicates the presence of amniotic fluid. The test may be false-positive in the presence of other alkaline substances such as blood, semen, or in the presence of bacterial vaginosis. The pKa for bromothymol blue is 7.10. [edit] Indicator colors BTB indicator in pH acidic, neutral, and alkaline solutions (left to right). Bromothymol Blue (pH indicator) below pH 6.0 above pH 7.6 6.0 à ¢Ã¢â‚¬  Ã¢â‚¬  7.6

Flora and Fauna

| Flora and Fauna| | 10/3/2013| | Outline Australia’s unique flora and fauna: Australia has a large variety of unique flora and fauna spread all over the continent, from coast to coast, including in the ocean. More than 80 per cent of the country’s flowering plants, mammals, reptiles and frogs are unique to Australia, along with most of its freshwater fish and almost half of its birds. Australia is home to more than 140 species of unique marsupials, including kangaroos, wallabies, koalas, wombats and the Tasmanian devil, which is now found only in Tasmania. There are 55 different species of kangaroos and wallabies, native to Australia.Australia’s marine environment is home to 4000 fish species, 1700 coral species, 50 types of marine mammals and a wide range of seabirds. Most marine species found in southern Australian waters occur nowhere else. Australia has over 1000 species of Wattle and around 2800 species in the Myrtaceae family, (gum trees and eucalypts). De scribe the threats to Australia’s flora and fauna: Extinction Since European settlement of Australia began, a little over 200 years ago, 18 species of Australian mammals and about 100 species of native plants have become extinct.Currently about 40 species of mammals and many hundreds of species of plants are threatened with extinction. These figures are among the worst in the world. Extinction is a natural ongoing process. However at the moment the majority of extinctions are caused by humans. We can clearly tell that it is the humans that are doing the damage, because of the unusually fast rate of extinction. The current rate of extinction in Australia is 100 times the background rate (naturally occurring rate of extinction). There are many things that cause extinction, some of these are: * Habitat loss Natural causes (flood, fire, drought) * Introduced species Picture Caption: This image shows the crisis that Australian flora and fauna are presently in. In this image the mo re red the region is, the more species in region are thought to be endangered and threatened. As we can see the species under the most threat reside around the capital cities and the coastal regions. This is because habitat has been cleared around the capital cities and higher numbers of threatened species. Also over 50% of Australia is uninhabitable so many plants and animals live in coastal areas because they cannot survive in central Australia.That is also why we might see higher threatened species rates on the coasts of Australia. Habitats under threat: Habitat loss is currently the main cause of species extinction in Australia. The main causes of habitat loss in Australia are; agriculture, clearing for urban living, logging and mining. When an ecosystem has been dramatically changed by human activities, it may no longer be able to provide the food, water and shelter all animals need to survive. Every day there are fewer places left, wildlife can call home. Most native species c annot exist outside a natural ecosystem.Australia is one of the top ten land clearing nations in the world. While clearing rates are starting to decline, we are still clearing more vegetation then we are planting or are able to regrow naturally. This continuous trend threatens Australia’s environment and flora and fauna species. In addition clearing land increases the chances of erosion and sedimentation of waterways and reduces water quality, also dramatically affecting our flora and fauna. Introduced species: One of the greatest threats to Australia’s Flora and Fauna is introduced species. Australia has a large number of introduced mammals and birds.Introduced frog species, have caused extinction of many native species, due to a massive change in the food pyramid. A prime example of an animal that is greatly damaging Australia’s native species is the Cane toad, which was introduced originally to destroy the harmful cane beetle. It is damaging Australia’ s native species, because larger animals see cane toads as prey and therefore hunt them. When cane toads are ingested, a poisonous toxin is put into the predator causing rapid heartbeat, excessive salivation, swelling and eventually death. The animals that commonly suffer are native reptiles, snakes and crocodiles.Risk of natural hazards: It isn’t only humans that are causing the irreversible damage to Australia’s native species. A very small threat to our animals is natural causes. These causes include fire, erosion, floods, drought, landslide and cyclones. Many of these things are a very common occurrence in Australia. One of the main natural hazards that Australia faces often is fire. Tens of thousands of animals died in the Victorian bushfire. Not including the many thousands that had to be euthanized afterwards, due to severe burns and dehydration. Most are small, non-flying animals that could not escape the flames.Insect populations took the worst hit. Natural fa ctors usually occur at a slower rate and therefore cause a low extinction rate. Human activities occur at a faster rate and cause higher extinction rates. Human activities are mostly responsible for the present extinction rates. Current policy position: Different governments around Australia have various pieces of legislation that protect Australia’s flora and fauna. The state governments are responsible for the bulk protection and sustainability of flora and fauna, while the federal government has little power over matters relating to flora and fauna.Many rules/laws on these legislations are very similar and have a few small differences to fit each state/ territory’s needs. However all legislations aim to protect all native species from harm, minimise the loss of habitat and to prevent extinction. These types of flora and fauna legislations are in place in all states/ territories around Australia. An example of this type of legislation is the Victorian Flora and Fauna Guarantee Act from 1988, which was the first Australian legislation to deal with issues relating to flora and fauna. The Flora and Fauna Guarantee act Victoria (1988) is designed to: * Protect species Protect genetic material and habitats, * Prevent extinction and * Allow maximum genetic diversity within the state of Victoria. Future action plan: There are many individuals, groups and governments that are having big impacts on the state of Australia’s flora and fauna. Some of which are positive and some are negative. The majority are positive; however there are more steps that individuals, groups and governments could take to ensure a brighter future for Australian native species. Individuals Wildlife Tourists Wildlife tourism is watching wild animals in their natural habitat.Australia has a large amount of wildlife tourism due to our unique flora and fauna species. These include; kangaroos, koalas, echidnas, dingos, platypuses, wallabies and wombats. Animal tourism in Austr alia is very beneficial not only for the tourists but also for the animals. When tourists come to Australia, they are educated about the animals, their habitat and how important it is to protect these animals. The tourist’s views and opinions are then changed and they walk away caring more for the animals and plants, as well as the importance of maintaining biodiversity.Secondly a proportion of the revenue raised from tourism goes towards more educational projects as well as conservation projects, which are very beneficial to all animals. Wildlife Tourism has many positives and the Australian wildlife tourism is moving in the right direction, but there are more highly important steps that need to be taken by the Australian tourism industry, to protect flora and fauna. When building accommodation for tourists, animal’s homes and habitats are often knocked down, causing disturbance to animals and leading to increased vulnerability.As explained earlier habitat loss is one of the major causes of extinction and should be minimised as much as possible. Instead accommodation should be constructed away from animal’s habitats, where it does not affect them too much. Secondly stricter rules should be in place to prevent the feeding of animals by tourists. Feeding of wildlife by tourists can have severe consequences for social behavior patterns. Artificial feeding can also result in a complete loss of normal feeding behaviors. When feeding of animals stops some animals are unable to locate their natural food sources. HuntersHunting is the practice of pursuing any living thing, usually wildlife or feral animals, by humans for food, recreation, or trade. Although hunting is not very common in Australia, it is still having a big impact on Australia’s flora and fauna. Hunting is seen by some as good for the environment as well as flora and fauna, because it keeps feral pests in check and gives native animals a chance. The majority of animals hunte d, are feral. These include non-native animals such as rabbits, hares, feral goats, pigs, buffalo, feral donkeys, horses and camels, which have been proven to endanger our native animals.Also the taxes from hunting activities go to the state or federal governments for such purposes such as enhancing wildlife habitat and managing and maintaining national parks. These things are beneficial, however it is quite clear, in the case of hunting the negatives outweigh the positives. The main reason is hunters are only allowed to pursue specific species. Some environmentalists argue that hunting creates an imbalance in the natural elements of the environment. For instance, if an animal that is typically a predator is hunted to lower numbers, their prey will increase in number.Nature has a delicate balance and hunting can have an impact on that natural balance. Opponents to hunting claim that animals have their own ways of population control and humans are not needed to aid that process. Grou ps WIRES WIRES are the largest wildlife rehabilitation charity in Australia. It is not for profit organisation that provides rescue and rehabilitation for all native Australian fauna. All animal rescuers and carers are volunteers. WIRES mostly respond to individual public reports of sick, injured or orphaned native wildlife. WIRES volunteers will rescue a sick animal, foster it and release it back into the wild.WIRES also educate kids about the importance of native animals and how to act and look after them to ensure they remain happy, healthy and in abundance. After rehabilitation of animals, WIRES releases animals back into the environment. However as we know, animals have a lower chance of survival after being released as they are not adapted to certain ways of living, predators and finding food. They may also be hunted. This is why WIRES needs to develop reserves where the animals can be released and monitored. With no roads and anti-poaching patrols, to ensure the best chance o f survival.Green Groups (Australian bush heritage fund) There are many different green groups across Australia, dedicated to protecting Australia’s diverse environment, especially its unique Flora and Fauna. One of these is the Bush Heritage Fund, which is a national, independent, non-profit organisation that’s aim is to preserve Australia's biodiversity by protecting the bush. It is Australia's most widely supported environmental national organisation. The Australian Bush Heritage Fund has a very simple yet effective scheme of protecting the biodiversity of flora and fauna.They do this through the creation of reserves on private land. The land the fund purchases are private and protected, meaning that no one can hunt/degrade habitat on the land. This means animals can live naturally, without harm. For example, the fund now owns Naree station. This reserve in Naree protects many native and impotant plants and animals. These include: Animals on protected on the Naree pr operty: * Brolga (vulnerable) * Freckled duck (vulnerable) * Little red flying fox * Pied honeyeater (vulnerable) * Spotted harrier (vulnerable) Brown treecreeper (vulnerable) * Kultarr (endangered) The reserve also protects iconic plants such as: * Coolabah tree * Bimblebox * Leopardwood * Beefwood * Supplejack * Belah The things the fund is doing are great and very beneficial for the flora and fauna of Australia. However, the fund could be doing many other things to protect our native flora and fauna. Firstly they should be conducting more research on the flora and fauna of Australia, to ensure they are purchasing the most important pieces of land, where the most vulnerable species are located.Secondly the fund should introduce education schemes for land owners, teaching them how to best manage their land to protect flora and fauna, as they have more land than the fund and therefore bigger impact on the flora and fauna. Zoos Zoos are defined as a facility in which animals are conf ined within enclosures, displayed to the public, and in which they are bred. However nowadays zoos are much more than that. Many zoos have now set up conservation society’s, such as the Taronga conservation society. There are a number of things zoo’s conservation societies do to help protect animals.This includes educating people about animals to help them make better decisions, breed animal populations that are endangered/ critically endangered, to increase their numbers and give the species a better chance of survival and help sick/ unwell animals to recover with vetinary care. These things are all important, however there is so much more zoos could be doing to ensure the preservation of animals. Firstly when they release animals into the wild, they may become sick or hunted again. Zoos should therefore establish protected reserves where no hunting/ poaching is allowed and all animals especially re-released ones are safe.Secondly zoos should establish anti poaching p atrols to make sure a minimal amount of animals are hunted in the first place. Lastly zoos should lobby for better legislation concerning poaching and habitat destruction, as they have a much bigger voice and authority than many other people/groups. Government National parks/ state parks National/State Parks are large areas of public land set aside for native plants, animals and the places in which they live. They also protect places important to Aboriginal people.Because the area in National parks is protected, no habitat is allowed to be cleared as the land is owned by the government. This ensures there is not a loss of habitat leading to vulnerability of certain species of animals and plants. National parks also educate visitors, both adults and children alike, about the importance of Australia’s native flora and fauna and what steps need to be taken to ensure they can survive. The education scheme also teaches about how individuals, even children can have an impact on the native species of Australia. These things are all fantastic and there was nothing to fault about national arks, until recently. Unfortunately within a few months, we will start seeing hunters being allowed to hunt in national parks. This should be stopped as it is a danger to tourists and native animals that live in the national parks. Also this type of activity will disrupt the natural food chain that has developed in national parks. This will also mean tourists will be more hesitant to visit national parks due to hunting, leading to less people being educated about Australia’s flora and fauna and smaller amounts of money being raised, to fund vital environmental schemes.

Roman Culture Has Impacted - Free Essay Example

Sample details Pages: 3 Words: 951 Downloads: 7 Date added: 2019/08/08 Category Literature Essay Level High school Tags: Oedipus Essay Did you like this example? Roman culture has impacted many individuals. From todays society and back then drama shows a major aspect of ionic ability. They are given the up-most credit for drama and theatre. Don’t waste time! Our writers will create an original "Roman Culture Has Impacted" essay for you Create order Theatre and acting are still different forms of amusement just as it is acknowledged in greek culture. I have learned alot from greek culture, Greeks created the first Democracy. In order for a law to be passed, the number of votes needed to be majority. Today, in the United States personally use a democracy but it is direct. Prevailing the drama Oedipus, without exception every man goal was to have a better life for themselves. Oedipus wanted it to be known in his society that not only did he have the highest power, but wanted to be observed at as a God. Relating this to many celebrities in todays society they expect to have this kind of power. Many politicians and celebrities disremember that they are still regular human beings at the end of the day, they just have others rooting for them, but it doesnt make it right for them to overstep their boundaries. When the plague attacks the city of Thebes everybody looked to Oedipus to dilemma the problem. The city knows every person looks up to Oedipus to have a resolution because he is royal which that is also a common trait in America today. When things go wrong in our society we expect the President to make things right. We dont blame ourselves instead we look up to a higher source and hold them accountable. In todays world we feel as if it is the governments power to care for us and to fix any issue within the nation. In Oedipus males are the main decision makers for their society which is still the same in our society. Even though many women have stepped up to the plate and took charge of the political scene, men will always be seen as being more powerful which is their duty. It is seen that woman are suppose to be lady of the house while men is the provider just like Greek culture. In Greece, women could not participate in plays that were written about them, men had to play the role for them. Grecian life they wanted to find an answer for everything and it was a reason for every action they made. In Oedipus they sent Creon to Delphi because they wanted him to find out why the infestation invaded the city. He wanted to know who execute his father but in reality it was his own fate to wipe out his father and marry his mother. He then left his imagined parents to avoid following that fate. He wanted Creon executed because Oedipus felt as if he was betraying him but then the Chorus persuades Oedipus to let him live. One thing I have learned from this play is that you cannot escape your fate no matter how hard you try, and that is what Oedipus was trying to do, he requested to escape and move far away from his family. Society then had a big importance on the principles behind greek civilization and the country was lead by the people. In todays society Oedipus compou nd is a not common logic which is not seen in normal human development. It is not accustomed for someone to to marry their mother or father then have a child by them. This can all connect back to the modern world, Oedipus could not put his pride to the side, he felt as if he could do and say anything and not a problem with it. Our self-knowledge can sometimes misled by our pride. We may not realize we are doing something wrong if no one speaks up about it. Its hard to imagine any scream movie without an intense, anticipating tone that works up mood. Greeks are responsible for the birth of drama. Its not so common in our society that one would have a sexual feeling towards their parents, or wanting to kill their father for a sexual feeling towards their mother but it could happen. Relating to the movie Cyrus, was about a grown boy who was recognized as a mothers boy was problematic in societys eyes and many seen him as an displaced person or odd. In Oedipus it is hard for him and his mother to break away from each other. If it was like that now they would be bashed and hated for having such feeling like that for one another. Just as Oedipus class lowered from royalty to low-class, the plays themselves have become less and less fancier. Nowadays, we watch movies about average, everyday people. Plays are based on historical events. The greeks wanted to make the best out of life and how they should live their life in that society. They stated that if you violate the social standards you will suffer throughout your lifetime. Oedipus is perceived to be a stubborn person, he believed that Tiresias was not telling him the truth and that Creon sent him to lie even though Tiresias proves that he can see the future. Present-day people can also be stubborn, once they have a set feeling on something they are going to stick with how they feel and nothing can change their mind, even if they have a thought of being right or wrong. Oedipus arrogance started showing in this play once he believed that he can become equal to all the other Gods. He was only perishable, and since he saved the city from sphinx he felt as if h e was the greatest God. Arrogance is important trait in todays world mostly towards the trendsetters.

The Vietnam War ( 1964-1971 ) Essay - 1867 Words

With casualties of over 58,000 Americans, over a million Vietnamese and $5 billions spent, the Vietnam War (1964-1971) was America’s longest and most unpopular along with being one of its most expensive. Viewed as a battleground for the new ‘flexible response’ policy of dealing with international aggression, Vietnam quickly dismissed any hope of a clean and easy US victory. The Vietnam conflict began as a conflict between North and South Vietnam, with the rise of Ho Chi Minh in the North and Ngo Dihn Diem leading the South after the country was divided in the Geneva agreement of 1952 with the expectation that an election in 1956 would reunite the country. The North’s regime was backed by the Communist powers although, at the time, Ho Chi Minh did not identify himself as a communist, simply as anti-colonial. The Diem led South was backed by the United States government. In response to Diem’s claims of Minh being a communist, President Eisenhower backe d South Vietnam’s refusal to participate in the election, following which, in 1958, South and North Vietnam went to war in what the US saw as a proxy war between the Communist and non-communist blocks. Initially, the US sent in 2000 advisors to Vietnam, a number that quickly grew to 13,000 advisors in 1963. The conflict was then escalated by President Johnson with air strikes and then ground troops when air strikes proved ineffective. Then in 1968, the Tet Offensive turned the US public against the war when itShow MoreRelatedThe War Of The Vietnam War1224 Words   |  5 Pages Intervention in Vietnam. Second Analysis Paper Student’s Name Institution of Learning Introduction The Vietnamese was very detrimental because several people died. Indeed, the Just War Wage Policies (JWPs) were famous with the Vietnam War of 1961-64. 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The war was useless for the American governmentRead MoreVietnam War : History And History1695 Words   |  7 Pages http://www.scribd.com/doc/28238272/Vietnam-War-DBQ#scribd Throughout the 1960s and 1970s Americans became uneasy not only about the troubled position of the United States in world affairs, but also about the disorder wrought at home byforeign entanglements. Vietnam, either because of the searing war experience itself or because of the lessons Americans later drew from the experience, drastically altered society during the1960s and 1970s. The belief in the right to influence the internal affairsRead MoreThe War Of The Vietnam War1370 Words   |  6 PagesThe Vietnam War, lasting almost twenty years and deploying 2.7 million troops to the front lines, was one of the largest wars in United States history. Beginning August 2nd, 1964, the war killed 58,000 American soldiers and disabled twice that number. 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