A membrane that allows some substances to travel across it while restricting the passage of others is ________
A) selectively permeable
B) impermeable
C) hypotonic
D) freely permeable
A
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Angiotensin II
A) causes the synthesis and release of aldosterone from the adrenal cortex. B) stimulates thirst only. C) stimulates thirst, causes widespread vasoconstriction throughout the body, and causes the synthesis and release of aldosterone from the adrenal cortex. D) causes widespread vasoconstriction throughout the body only. E) stimulates thirst and causes widespread vasoconstriction throughout the body.
Lymphatic ________ are the smallest lymphatic vessels.
Fill in the blank(s) with the appropriate word(s).
Which of the following occurs in the stratum granulosum?
A. The keratinocytes undergo apoptosis. B. Keratinocytes are produced through the process of mitosis. C. Melanocytes produce melanin. D. The keratinocytes flake off the surface of the skin. E. The cells produce more keratin filaments that cause the cells to flatten.
One hormone responsible for initiating the development of follicles is
A. HCG. B. progesterone. C. FSH. D. estrogen. E. LH.