Across
- 3. A tool used by scientists to study viruses.
- 6. An extremely small piece of material that causes disease in humans, animals, and plants.
- 7. Feeding; taking in nutrients to provide energy and materials for growth.
- 8. Part of a virus that tells other cells to make more viruses.
- 9. A hybrid animal of a male lion and a female tiger.
- 13. Breaking down food to release energy that the organism can use.
- 15. Detecting changes in the environment
- 16. A hybrid animal of a male tiger and a female lion.
- 17. When viruses … they have to get inside a living cell before they can make copies of themselves.
- 19. Getting rid of waste materials, such as carbon dioxide.
- 20. A disease caused by the influenza viruses.
Down
- 1. A permanent increase in size
- 2. Viruses are not made of … because they do not have a membrane or cytoplasm.
- 4. A scientific word for 'children.'
- 5. A type of viruses that looks like a crown.
- 10. Not all the organisms in a species … to each other although they look similar.
- 11. Making more organisms of the same species.
- 12. When organism is … this means it can produce children.
- 14. Changing the position of all or part of the body.
- 18. Indian elephants … only with other Indian elephants. They do not … with African elephants.