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Which of the following is true about endocrine glands?
A. It needs a duct system
B. The secretion can affect the neighboring tissues and organs
C. Can be found only in males
D. The hormonal secretion is directly to the bloodstream. ​


Sagot :

Answer:

D. The hormonal secretion is directly to the bloodstream. ​

Explanation:

Endocrine glands are ductless glands of the endocrine system that secrete their products, hormones, directly into the blood. The major glands of the endocrine system include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands.