Across
- 1. is biotic living or nonliving
- 5. what is the term for each step in the transfer of energy and matter within a food web
- 7. all of the members of a particular species that live in one area is called
- 9. what is it when one benifits and the other is not affected
- 10. an organism that cannot make its own food is a
Down
- 2. is abiotic living or nonliving
- 3. when both benifit.
- 4. in the tundra cold or warm
- 6. when one benifts and the other is harmed
- 8. a specific area in an ecosystem that an individual occupies is called