The answer is the digestive and circulatory system.
Answer:
The last one
Explanation:
even though some people like to fight always work on the inside you can't always go for the most reasonable thing at first which is confront you have to kill the source by telling an adult and always have protection.
Answer:. d
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Explanation:
How are you?
Answer:
Protein
Explanation:
Your body uses protein to build and repair tissues. You also use protein to make enzymes, hormones, and other body chemicals. Protein is an important building block of bones, muscles, cartilage, skin, and blood.