How are endocrine glands and hormones involved in homeostatic reflexes?
A. Endocrine glands can be efferent pathways, and hormones can be effectors.
B. They are not involved; reflexes only involve actions of the nervous system.
C. Endocrine glands can be receptors, and hormones can be effectors.
D. Endocrine glands can be integrating centers, and hormones can be efferent pathways.
E. Endocrine glands are not part of reflex mechanisms, but hormones can be afferent or efferent pathways.
Answer: D
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