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Database
Michelle Ng
Index No. 12
Class 3A


Contents

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Thursday, January 8, 2009
21.3
Are organisms interdependent?
YES!


Plants provide food, shelter, and nesting sites for other organisms
Many plants depend upon animals for help in reproduction
eg.bees pollinate flowers

1) plants make their own food
2) in turn, they are food for animals
3) which may be eaten by other animals
4) when aniamls die, they are food for decomposers
5) which break down their bodies into simple materials
6) and now, plants can use the materials to make food
SO, organisms depend on each other to survive

- the various populations in a community live interdependently
- a change in one population will affect the other population of the community


Why are organisms interdependent?
- all living organisms in a community depend on other living and non-living things in some way to survive
- each population must be strong enough to ensure the survival of all organisms involved
- when one population is weakened or broken, the rest of the organisms is affected either directly or indirectly
- a single change in the environment can affect the organisms living in it and thus upset the balance of nature.
- SO, organisms are interdependent to maintain the balance of nature, aye?
10:07 PM