• 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...


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.


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.


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 ...

    The main disparity between the nutrient cycles of natural and agro-ecosystems is in the path taken by nutrients fixed in crops. Without intervention the majority is returned as dead organic matter, but in agro-ecosystems the great majority of the

  2. Fungal Pathogens in Humans.

    Another way the host's cells defend themselves is by withholding required nutrients such as iron and calcium from the intruders, sequestering them in the phagolysosomes (Weinberg 1999). In fact, there is a very low concentration of calcium in the very cells Histoplasma yeasts choose to call home.

  1. Evolution, Natural selection and Darwinism

    about the physical world but to formulate abstract concepts of art, science, philosophy and religion. We do not know when speech began but whatever its origin, the basics anatomical structures associated with speech had to be present in our ancestors.

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

    * Animal testing has played a huge role developing vaccines against diseases such as tuberculosis, measles, mumps, rubella, rabies and polio. These diseases are widespread across the world and thanks to animal testing millions of lives have been saved. * Also, through animal testing, scientists were able to develop organ

  1. Early Humans?

    The enamel on the canines and molars is thin, this is a distinctly ape trait; all other hominins have thick dental enamel. However A. ramidus can be differentiated from extant and extinct apes by its less projecting crowns, smaller upper central incisors relative to postcanine teeth, and most importantly the

  2. Rain forests.

    Plants and animals. About 45 percent of the world's plant species occur in tropical rain forests. Scientists have counted over 250 species of trees in small areas of Asian and South American rain forests. A similar plot of land in a northern temperate forest would have only about 10 to 15 tree species.

  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

    There are many researchers and scientists who agree on my view on how poaching is wrong, especially this specific species Siberian tigers. Thankfully this issue is been brought up many times and efforts have been made to protect the tigers.

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