What do pheromones influence in animals and likely people?
a. fight or flight response
b. lactation
c. aggression
d. hunger
e. sociosexual behavior
e
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Which of the following is a correct description of arthroplasty?
a) resurfacing of cartilage in a joint b) reshaping of the ends of the bones in a joint c) surgically replacing a joint with an artificial joint d) injection of synovial fluid into the joint e) a, b, and d
When the membrane potential is +15 mV, that portion of the membrane
a. is at the normal resting potential b. has a positively-charged inside border c. is more permeable to Ca2+ than normal d. is in the after hyperpolarization phase of an action potential e. is in a hyperpolarized state
Which of these muscles functions only to compress the abdomen?
A) external abdominal oblique muscles B) internal abdominal oblique muscles C) diaphragm D) rectus abdominis muscle E) transversus abdominis muscles
The bond in a water molecule is a/an ___ bond.
-hydrogen -polar covalent -nonpolar covalent -ionic