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Author Question: What is estrogen (or testosterone)? ... (Read 10 times)

Tirant22

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on: Aug 20, 2018
What is estrogen (or testosterone)?

Question 2

What is vitamin D?


helenmarkerine

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Reply #1 on: Aug 20, 2018
Answer to Question 1

A sex hormone made from cholesterol by the body.

Answer to Question 2

Cholesterol is a precursor for this vitamin.


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Tirant22

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Reply #2 on: Aug 20, 2018
Thanks


helenmarkerine

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Reply #3 on: Aug 20, 2018
Welcome :)


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