Across
- 2. The period of time for a particular living thing.
- 5. An action that causes a response.
- 6. Living things that depend on other living things for food.
- 7. The structual and functional unit of a non-living thing.
Down
- 1. Something that all living organisms have.
- 3. A response of the tip of the plant moving towards sunlight.
- 4. Living things that make their own food.