Ecology

These pages will help you with your Key Stage 3 Biology. You may also find them useful if you are doing Biology GCSE.

Here is a simple list of the things which you need to know about:

1. Habitats and adaptation
   different animals and plants live in different places (habitats)
   living things are adapted to their habitats
2. Feeding relationships
   food chains
   food webs
   pyramids of numbers and of biomass
   bioaccumulation
3. Competition
   how populations of animals and plants get bigger or smaller because:
   they are competing for food and space
   predation
   grazing
   successful things have more offspring