Living Things Communicate

4. Chemical substances that are released by organisms and can affect the behavior or physiology of other organisms of the same species.
5. A strategy or behavior used by organisms to protect themselves from harm or danger.
9. Fungi that form a mutualistic association with the roots of plants, helping them absorb nutrients from the soil.
10. An area that is claimed and defended by a living thing.
13. One of a kind or different from everything else.
14. Non-verbal communication using facial expressions, gestures, and posture.
15. To watch or pay attention to something closely.
17. Repeating designs or behaviors that can be observed.
18. Sounds made by living things to communicate.
19. Orders or instructions given to someone or something.
20. Clearly different or separate from others.

1. Figuring out the meaning or message of something.
2. The act of exchanging information or ideas between living things.
3. Animals that hunt and eat other animals.
6. Living together peacefully or in harmony.
7. The surroundings or conditions in which living things exist.
8. Quick, back-and-forth movements that can be felt or heard.
11. Substances that provide nourishment and are essential for the growth and development of organisms.
12. Very large or extensive.
16. Giving and receiving something in return.