Which of the following lists exclusively contains only variables that determine a person's basal metabolic rate?
A. gender, weight, age, and muscular activity
B. age, height, and recent ingestion of food
C. environmental temperature variations, body surface area, and emotional state
D. gender, age, body surface area, and circulating levels of thyroid hormone
E. environmental temperature, muscular activity, and emotional state
D
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Drug X interferes with the action of norepinephrine at synapses. Which of the following mechanisms would NOT explain the effects of X?
A. X inhibits synthesis of norepinephrine at the axon terminal. B. X inhibits norepinephrine release from the terminal. C. X blocks reuptake of norepinephrine by the terminal. D. X is an adrenergic receptor antagonist. E. X stimulates the catabolism of norepinephrine.
Circulation to the spleen demonstrates a(n)
A. simple pathway, as its two capillary beds are separated by a portal vein. B. anastomosis, as one artery delivers blood and one vein drains the organ. C. anastomosis, as its two capillary beds are separated by a portal vein. D. simple pathway, as one artery delivers blood and one vein drains the organ.
The placenta secretes hCG, which causes the ovaries to maintain cyclic follicular development (ovulations) during pregnancy
Indicate whether the statement is true or false
"Natural family planning" is an alternative term for which form of birth control?
A) the rhythm method B) an intrauterine device C) hormonal post-coital contraception D) oral contraceptives E) vasectomy