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