Unit 4 Crossword Puzzle

3. A hybrid animal of a male lion and a female tiger.
5. Another word for children.
8. Making more organisms of the same species.
10. Detecting changes in the environment
13. Part of a virus that tells other cells to make more viruses.
14. A permanent increase in size
15. Changing the position of all or part of the body.
16. Not all the organisms in a species … to each other although they look similar.
18. Breaking down food to release energy that the organism can use.

1. is feeding; taking in nutrients to provide energy and materials for growth.
2. Viruses are not made of … because they do not have a membrane or cytoplasm.
4. Microscope A tool used by scientists to study viruses.
6. A disease caused by the influenza viruses.
7. When viruses … they have to get inside a living cell before they can make copies of themselves.
9. When organism is … this means it can produce children.
11. Getting rid of waste materials, such as carbon dioxide.
12. A hybrid animal of a male tiger and a female lion.
17. An extremely small piece of material that causes disease in humans, animals, and plants.
18. Indian elephants … only with other Indian elephants. They do not … with African elephants.