4. Выберите правильный ответ:

1. The place where two bones come together is called … a) a system b) a joint c) an organ d) a tissue

2. You can hold your breath for only a short time because of your body’s need for … a) carbon dioxide b) nutrients c) oxygen d) hormones

3. Your cells use parts of food called … a) nutrients b) hormones c) organs d) alveoli

4. Before something can be seen, it must … light. A) reflect b) wave c) absorb d) sense

5. Hormones travel to all parts of your body through … a) alveoli b) joints c) pituitary d) bloodstream

6. Sounds are made by …a) tissue b) vibrations c) nutrients d) alveoli

7. The smallest living parts of your body are called… a) villi b) alveoli c) joints d) cells

8. The part of digestion called mechanical digestion begins with … a) villi b) mouth c) stomach d) intestine