Answer:
It is A
Explanation:
It is the only one that makes sense
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Keratin
Protecting the skin is one of its main responsibilities as a protein in epidermis.
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I’m pretty sure it’s D! Brainlyist ???
Answer:
The major glands of the endocrine system are the hypothalamus, pituitary, thyroid, parathyroids, adrenals, pineal body, and the reproductive organs (ovaries and testes). The pancreas is also a part of this system; it has a role in hormone production as well as in digestion.
Explanation: