An ecosystem has many food chains. The same food source can be part of more than one food chain. This means that one food chain can overlap another food chain. For example, coyotes and mountain lions are both carnivores. They both hunt prey like the collared peccary. When food chains overlap, there is a food web.
Make a model of a food web that includes humans. Check these links in computer lab.
http://www.sciencebob.com/questions/q-food_chain_web.php
You can click the link on this page to make a food web:
Try some games and activities at:
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