food+chain

=**Revised and Edited by Mr. D 11/16/11 **=

food chain

Try the food chain games at the link below:

Food Chain Games



** Look at the diagram above. List all the possible food chains you can find in this picture below: **
In the diagram above, there are 4 possible food chains.

** for example SUN -> grass -> rodent -> fox -> cougar **

 * Here are some food chains I found: **


 * ** sun -> grass -> rodent -> fox **
 * ** sun -> plants -> rodent -> owl/fox **
 * ** sun -> berry bushes -> birds -> fox/owl **
 * ** sun -> flowers -> deer -> bear/ **
 * ** sun -> trees -> insects -> skunk/birds/opossum **



What is the advantage of using a food chain as a model to represent an ecosystem?

=== The advantage of using a food chain as a model to represent an ecosystem is it's easier to read and shows the distribution of the energy and how it decreases. However the bad thing about using a food chain is that it doesn't show how fragile ecosystems are well. ===

How is a food chain  different than a food web ?

=== A food chain is different than a food web because, the food web shows the whole ecosystem and how many animals affect each other, a food web just shows a couple animals that are part of the whole web. ===

What do the arrows  represent in a food chain?