Across
- 3. variety of life in the world or in a habitat or ecosystem
- 8. The basic unit of life
- 9. an organism that lives off of other organisms like plants
- 10. set of things working together
- 11. a biological community with living biological things
- 12. notice or perceive something
Down
- 1. relation between parts of something complex
- 2. an organism that makes their own food and nutrition
- 4. activity or purpose for person or thing
- 5. different organisms developing and diversifying from earlier times
- 6. a process that living things use to actively maintain fairly stable conditions for survival.
- 7. power from the usage of physical or chemical resources to get a system going