Across
- 4. - an instrument that allows you to look closely at objects that are invisible to the human eye; including cells
- 5. - threadlike structures inside cells that carry genetic materials.
- 7. - substances that provide the nourishment living things need to survive and grow.
- 8. - the strength a living thing gains from absorbing materials.
- 10. - ancient; prehistoric.
Down
- 1. - an animal, plant, or single-celled living thing.
- 2. - relating to genes; hereditary information that is passed from parent to child.
- 3. - single-celled organisms that can cause some diseases.
- 6. - any specialized structures inside a cell that perform specific tasks; similar to organs,
- 9. - remain alive