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Health

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1. What is needed to make blood cells?

2. What pair of workers is needed to produce estrogen?

3. What is needed to produce eleven hormones that control the actions of other endocrine glands?

4. What is needed to pass oxygen from lungs into blood vessels and welcome carbon dioxide into the lungs?

1.platelets
2.ovaries
3.pituitary gland
4.veins

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