Let’s see how much you’ve picked up with these experiments and the reading – answer as best as you can. (No peeking at the answers until you’re done!) Just relax and see what jumps to mind when you read the question. You can also print these out and jot down your answers in your science notebook.


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1. What is homeostasis?
2. What is an example of the body maintaining homeostasis?
3. Cells make up tissues, at least how many tissues make up an organ?
4. What are the four main types of tissues?
5. Describe how a negative feedback works and give an example.
6. What is the biggest organ in the body?
7. The skin, hair, and nails make up which system?
8. What are three ways the integumentary system helps maintain homeostasis?
9. What are the two layers of skin? What is the fatty layer underneath the skin called?
10. What role does melanin play in the skin?
11. What causes acne?
12. What three components make up the skeletal system?
13. What are the main functions of bones?
14. What is the difference between red bone marrow and yellow bone marrow?
15. What are the three classes of joints?
16. What are the four types of movable joints?
17. What are two key nutrients bones need?
18. What’s the difference between skeletal muscle, smooth muscle, and cardiac muscle?
19. Muscles work in pairs, what do we call the one that bends the joint? What do we call the one that straightens the joint?
20. What is the difference between stretching exercises, aerobic exercises, and anaerobic exercises?


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