Biology Definitions Beginner Quiz 4

1. What is the organ system responsible for transporting blood throughout the body?

2. What is the process by which an organism maintains a stable internal environment?

3. What is the main source of energy for most life on Earth?

4. What is the function of the immune system?

5. What is a habitat?

6. What is an adaptation?

7. What is a population in biology?

8. What is the process by which plants release water vapor into the air?

9. What is a gene?

10. What is the function of the nervous system?