A lack of ________ would impair the body's ability to maintain homeostasis.
A. All items listed are necessary to maintain homeostasis.
B. oxygen
C. food
D. water
Answer: A
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In ________, ions or molecules move in opposite directions.
A. ionport B. symport C. uniport D. antiport E. comport
The allele for cleft chin (C) is dominant to the allele for uncleft chin (c). A male and female who are both heterozygous for cleft chin have a child. What is the chance that this child will have an uncleft chin?
A. 25% B. 50% C. 75% D. 100% E. 0%
Angiotension II stimulates the posterior pituitary gland to secrete ___________________ hormone.
Fill in the blank(s) with the appropriate word(s).
The uptake of cholesterol into cells is an example of
A. receptor-mediated endocytosis. B. simple diffusion. C. receptor-mediated exocytosis. D. phagocytosis. E. pinocytosis.