Read each sentence. Write True if the sentence is true and False if the sentence is false. 1. Bones in the skeleton protect the soft parts of the body. 2. Bones do not grow or change. 3. All joints move in the same way. 4. Heart muscles are under your control. 5. Carbon dioxide is a waste made by cells. 6. Arteries carry blood rich in food and oxygen. 7. The heart has four chambers. 8. White blood cells help fight germs.

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Let's evaluate each sentence one by one:

1. **Bones in the skeleton protect the soft parts of the body.**  
   **True** - Bones provide protection for vital organs and soft tissues.

2. **Bones do not grow or change.**  
   **False** - Bones grow and change throughout a person's life, especially during childhood and adolescence.

3. **All joints move in the same way.**  
   **False** - Different types of joints (e.g., hinge, ball-and-socket) allow for different ranges and types of movement.

4. **Heart muscles are under your control.**  
   **False** - Heart muscles are involuntary and operate automatically without conscious control.

5. **Carbon dioxide is a waste made by cells.**  
   **True** - Carbon dioxide is a byproduct of cellular respiration and is considered a waste product.

6. **Arteries carry blood rich in food and oxygen.**  
   **True** - Arteries carry oxygenated blood (and nutrients) away from the heart to the body.

7. **The heart has four chambers.**  
   **True** - The human heart consists of four chambers: two atria and two ventricles.

8. **White blood cells help fight germs.**  
   **True** - White blood cells are a key component of the immune system and help defend the body against infections.

Here’s the summary of the answers:
1. True
2. False
3. False
4. False
5. True
6. True
7. True
8. True
1. True 2. False 3. False 4. False 5. True 6. True 7. True 8. True

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