Respuesta :
The correct answer is option D
the pineal gland releases melatonin into the bloodstream
In the exocrine system the organ releases certain substance other than hormone while in the endocrine system , the organs releases hormones.
In option D, melatonin is a hormone released by pineal gland and thus it is an endocrine function
The statement which best describes an endocrine function is that: D. the pineal gland releases melatonin into the bloodstream.
What is an endocrine system?
An endocrine system simply refers to series of ductless glands and organs that mainly are responsible for the production and secretion (release) of hormones that are used by the body of a living organism, especially for the performance of various functions such as:
- Controlling growth
- Reproduction
- Metabolism
- Mood
- Sleep
In this context, we can infer and logically conclude that the statement which best describes an endocrine function is that the pineal gland secretes (releases) melatonin into the bloodstream.
Read more on endocrine system here: brainly.com/question/22851959
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