1. Feeding Relationship When organisms of an ecosystem interact by eating each other

3. Arrow points away from the thing being eaten because the food value of the fly is going into the spider.

5. Planktonic Algae Brine Shrimp California Gull Coyote Sample Food Chain What do we do about organisms that are eaten by many organisms?

10. PRODUCERS PRIMARY CONSUMERS SECONDARY CONSUMERS THIRD-LEVEL CONSUMERS Planktonic algae Benthic algae Brine Shrimp Brine fly Red-necked phalarope Wilson’s phalarope Eared grebe Caspian tern Snowy plover Coyote California gull

11. DECOMPOSERS PRODUCERS PRIMARY CONSUMERS SECONDARY CONSUMERS THIRD-LEVEL CONSUMERS Planktonic algae Benthic algae Brine Shrimp Brine fly Red-necked phalarope Wilson’s phalarope Eared grebe Caspian tern Snowy plover Coyote California gull