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Parathyroid hormone: a. increases osteoblast activity to release more calcium ions into the bloodstream b. increases osteoclast activity to release more calcium ions into the bloodstream c. increases osteocytes activity to release more calcium ions into the bloodstream d. none of the above

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tiffanyk12

Answer:

B

Explanation:

The parathyroid releases hormone that breaks down the bone to raise blood calcium level. Osteoclasts are responsible for breaking down the bone tissue.

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