The process of lactation (milk production) depends on both merocrine and ________ secretion by mammary gland epithelial cells
A) eccrine
B) endocrine
C) holocrine
D) exocrine
E) apocrine
Answer: E
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A high count of which of the white blood cells shown in the figure may indicate cancer or hypothyroidism?
a) A b) B c) C d) D e) E
The major divisions of the autonomic nervous system (ANS) include
A) pre - and postganglionic fibers. B) the sympathetic and parasympathetic divisions. C) the voluntary and involuntary divisions. D) the conscious and unconscious nervous systems. E) None of the answers are correct.
Which is TRUE about the pleural sac?
A. It is continuous with the atmosphere and protects the lungs from infection. B. It is a closed sac surrounding each lung that contains only a tiny volume of lubricating fluid. C. It is a closed, air-filled space surrounding both lungs that has a negative pressure compared to atmospheric pressure. D. It is a closed sac surrounding each lung and contains a large volume of surfactant. E. It is bounded by pleural membranes that are very thin, which allows for abundant gas exchange.
Essential organic compounds needed in the diet in small amounts for growth and health are called _______.
A) Hormones B) Minerals C) Cholesterols D) Vitamins