C. There is a lack of nutrients
The answer is: "differences in temperature and salinity" .
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(based on the assumption that we are referring to the world's ocean).
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Answer:
um there is not any pic down below can you give it to me and i will help
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Explanation:
The endocrine glands produce and release chemicals directly into the bloodstream or into a<span>Endocrine glands, on the other hand, release more than 20 major hormonesdirectly into the bloodstream where they can be transported to cells in other parts of the body. The major glands that make up the human endocrine system include the: hypothalamus. pituitary gland.</span>
