Across
- 4. is the variety of organisms
- 6. a group of different species that live together
- 7. are Species that have a large affect on the ecosystem
Down
- 1. are living things
- 2. is the study of the interactions among living things and between living thing
- 3. are nonliving things
- 4. is a major regional or global community of organisms
- 5. is living and nonliving things in a given area