Explain how the terms in each set below are related. 15. food chain, food web, trophic level
16. decomposer, heterotroph, carnivore
17. autotroph, food chain, heterotroph

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

Defend or refute the argument that the government has too large a presence in the agriculture industry.

What statements describe a host organism?