In ________, a cell increases the number of hormone receptors and becomes more sensitive to the hormone.
A. up-regulation
B. down-regulation
C. positive feedback
D. amplification
Answer: A
Anatomy & Physiology
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Secondary lymphatic organs are where lymphocytes will
A. encounter and bind to antigens. B. grow and mature. C. differentiate into different types of lymphocytes. D. learn to recognize self cells.
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The outermost connective tissue covering of a nerve is called the ________
A) endoneurium B) perineurium C) epineurium
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The adrenal medulla produces the hormones
A) epinephrine and androgen. B) epinephrine and norepinephrine. C) corticosterone and testosterone. D) androgens and progesterone. E) norcortisol and cortisol.
Anatomy & Physiology