write an essay with 5,000 words on marine life
Answers
Answer:
Marine life, or sea life or ocean life, is the plants, animals and other organisms that live in the salt water of the sea or ocean, or the brackish water of coastal estuaries. At a fundamental level, marine life affects the nature of the planet. Marine organisms produce oxygen and sequester carbon. Shorelines are in part shaped and protected by marine life, and some marine organisms even help create new land. The term marine comes from the Latin mare, meaning sea or ocean.
Most life forms evolved initially in marine habitats. By volume, oceans provide about 90 percent of the living space on the planet.[1] The earliest vertebrates appeared in the form of fish,[2] which live exclusively in water. Some of these evolved into amphibians which spend portions of their lives in water and portions on land. Other fish evolved into land mammals and subsequently returned to the ocean as seals, dolphins or whales. Plant forms such as kelp and algae grow in the water and are the basis for some underwater ecosystems. Plankton forms the general foundation of the ocean food chain, particularly the phytoplankton which are key primary producers.
Marine invertebrates exhibit a wide range of modifications to survive in poorly oxygenated waters, including breathing tubes as in mollusc siphons. Fish have gills instead of lungs, although some species of fish, such as the lungfish, have both. Marine mammals, such as dolphins, whales, otters, and seals need to surface periodically to breathe air.
There are over 200,000 documented marine species with perhaps two million marine species yet to be documented.[3] Marine species range in size from the microscopic, including phytoplankton which can be as small as 0.02 micrometres, to huge cetaceans (whales, dolphins and porpoises), including the blue whale – the largest known animal reaching 33 metres (108 ft) in length.[4][5] Marine microorganisms, including protists, bacteria and viruses, constitute about 70% of the total marine biomass.
like and follow me
Answer:
The oceans are one of Earth’s greatest gifts to humans, beautiful and valuable ecosystems teeming with life that provide everything from fresh food to careers for the millions that would otherwise be out of work. These seas that we are so dependent on may seem perfectly healthy, but not everything is as it appears. The oceans are like a slowly wilting flower that has been beaten down over the years and is now shedding its last petals. If something is not done soon to fix the mess that humanity has made, then it will be too late to save some of the irreplaceable species that make lives easier each and every day. Marine life conservation is a method that is working to save some of those petals. This type of conservation works to save species of the ocean and the aquatic habitats in which they reside. This essay will cover the topics of what marine life conservation is, what will happen if action to save the ocean is not taken, and possible solutions to the problem of pollution in the seas. While the mistakes of the past will always affect the future, there is still time to create a better outcome, and it starts with being educated on the issue at hand.
As you can see, the oceans' current predicament is far from good. Pollution is constantly being pumped out into these large bodies of water, and every day thousands of animals die from it. Whether a turtle is strangled by the plastic rings that formerly joined together bottles of soda or inhales the sewage dumped into his home, it has the same effect. Marine life dies. Many people are already aware of this but do not like to think of the consequences of their actions. It is inconvenient for them, and, as a result, animals die. How many more seconds of your day would it take to cut up those plastic rings? What about finding a more eco-friendly solution to getting rid of waste? The answer: not very many. If you know for sure that this would safe lives, human or otherwise, why would you put it off?
There is a reason why marine life conservation is considered so important, and it is because of how essential oceans are to the existence of every creature on this planet. Oceans are a huge source of oxygen for organisms everywhere and are very helpful in the processes of both storing and capturing carbon dioxide (“Marine Species”). As if providing half of the oxygen that humans breathe is not enough, they go on to make available other essential and vital resources for existence such as nourishment, medicines, and support for the costal economies of the world (“Protecting Oceans and Coasts”). The Great Barrier Reef alone houses 400 types of coral, 1,500 species of fish, and 4,000 different mollusks. Located off of the coast of Queensland, Australia, it extends over 1,240 miles off the coast, and is not actually a single reef at all, but a chain of almost 3,000. Some coastlines are protected for reasons like this, and such is the case with some of the more sensitive coastlines in California on which the California Coastal Act of 1976 restricts development and building (Kerrigan, 42). Others, however, are not and therefore are subject to pollution. This problem has become more and more pronounced, and it is a costly mistake to fix. The Natural Resources Defense Council has analyzed a survey that was taken by 95 Californian communities, finding that the total of their annual reported costs for preventing litter from becoming pollution was $428 million dollars per year (“Solutions to Plastic Pollution in our Oceans”). That is around half a billion dollars that California could be using for other worthy causes but will not be able to because people simply refuse not to litter. Oceans cover around 70% of our planet and without them, many organisms would have ceased to exist long ago (“Marine Species”). Each of these organisms plays an important part in the upkeep of Earth, and so it is essential to respect that and keep in mind that biodiversity matters (“Marine Biodiversity”). Once a species becomes extinct, there is not any way to bring it back.