In response to increased internal temperature, blood flow to the skin will ________.
A. increase
B. remain unchanged
C. decrease
Answer: A
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What would be an example of a cell maintaining homeostasis at the cellular level?
A) a cell of the intestine secretes digestive enzymes B) a muscle cell contracts C) a sperm fertilizes an egg D) a cell takes up potassium to maintain the proper cytoplasmic potassium concentration E) a cell divides to become two cells
Hypersecretion of human growth hormone during childhood results in
a) giantism. b) acromegaly. c) dwarfism. d) rickets. e) no apparent effect.
Cyclic AMP activates
A) adenylyl cyclase. B) hormone receptors. C) protein kinase A. D) protein hormones. E) a G protein.
Which structure enables the elbow to be fully extended?
A. Trochlea B. Capitulum C. Olecranon fossa D. Olecranon process E. Coronoid fossa