Across
- 3. organisms that that eat nonliving organisms
- 5. consume the engery from producers (first trophic level)
- 7. one part of a food web
- 8. they turn organic wastes into rich soil
Down
- 1. the energy in living organisms
- 2. autotrophs that give energy to heterotrophs
- 4. toxic chemicals that increase with each trophic level
- 6. food webs groped into categories called producers consumers and decomposers