• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Planet Earth Ecosystems

Extracts from this document...

Introduction

Usman Majeed 5/17/09 IB Bio Year 1 Planet Earth Ecosystem Essay The world is a large biosphere that we live in, formally known as planet Earth. Some populations uncontrollably seem to grow while others tend to dwindle. It's a dog eat dog world, and humans, are at the top of the food chain. Planet Earth talks about the delicate ecosystems and fragile animals that live in them, as well as how their numbers are beginning to die out. Poaching seems to be the main reason why animals seem to become endangered. Unfortunately however, there are several other reasons why animals can be threatened with extinction such as human interference, pollution, and diseases. ...read more.

Middle

A large problem that is seen in many exotic countries such as Africa where precious animals like elephants, tigers, and rhinoceros reside poachers are extremely threatening. Poachers kill animals deliberately for one reason: to make profit off of them. Elephants for example, have large ivory tusks which are very valuable in the black market. Another variable in animal life is that of pollution. Pollution can be things such as waste, oil spills, etc. Acid rain and water pollution have been devastating for many species of fish and birds. Many animals can be caught in many plastic items and others may even attempt to eat left over food or other trash. ...read more.

Conclusion

Also because many trees are inevitably cut down from forests the only thing we can do is to find alternate ways of using wood, and we can also help by planting trees or "replenishing" the environment so to speak. Because plants are the basis of any ecosystem it is vital that they are prevalent, thus planting new vegetation is essential to survival not only for animals, but for humans as well. Humans can also help by providing research for eradication and prevention of certain diseases and plagues in specific ecosystems. Scientists continue to research and provide new ways to fight diseases and furthermore help species from extinction. As an added help by humans many national reserves and wildlife parks are being developed all over the world to protect and help breed endangered species in order to ensure their continuation of life on our beloved planet Earth. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Living Things in their Environment section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Living Things in their Environment essays

  1. Describe the differences between natural ecosystems and ...

    biomass is exported as crops, fodder crops or forage, and usually only a small fraction of the biomass on farms may be left to seed.

  2. Fungal Pathogens in Humans.

    Interestingly, the saprophytic (mycelial) form of Histoplasma cannot survive without high levels of calcium in the environment, and does not secrete CBP (Magrini and Goldman 2001). The organism must have the CBP1 gene, but it is "turned off" in the mycelial form.

  1. Evolution, Natural selection and Darwinism

    and extends beyond pair formation and family life to the establishment of communities at the level of bands, tribes and chiefdoms and nation states. The course of the evolution of human social behaviour was intimately linked with the development of culture and both were categorised by: - Establishment of the family (one partner or many wives)

  2. Animal behaviour and research into attitudes on animal testing.

    * Some people say that many animals that are being tested upon are actually euthanized before they get a chance to suffer pain. This is contrary to the argument that says that animal testing cause unnecessary suffering to the animals and is needless.

  1. Early Humans?

    The molar shape is similar to those of apes whereas the canines resemble an incisor, and are not sharply pointed like apes. The size of the canines is intermediate between living apes and australopithecines. Its dentition is more primitive than later australopithecines.

  2. Rain forests.

    Most rain forest trees continually lose old leaves and grow new ones. Only a few species lose all of their leaves for a brief period. Fish, amphibians, reptiles, birds, and mammals abound in the rain forest and its rivers. However, insects rank as the most plentiful rain forest animals.

  1. Comparison of the species diversity of the vegetation of upland and lowland ecosystems.

    Soil types affect the plants directly because plants rely on soil to provide them with water and nutrients. Soil can be acidic, alkaline or neutral. Alkaline soils are alkaline because they are on limestone (calcarious). Acidic soils are acidic due to peat, which is mainly on moor soils.

  2. Threats to the Siberian tigers survival

    The enforcement is called the (CITES) which stands for Convention on International Trade in Endangered Species of Wild Fauna and Flora.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work