Cells with gap junctions are typical of tissues
a. that suffer wear, abrasion, and mechanical
insults.
b. such as bone and cartilage that must withstand
external forces.
c. that require rapid exchange of chemical
messages, as is the case for cardiac muscle.
d. that secrete enzymes or hormones.
e. described by all of these.
Answer: c
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A friend asks you to explain the difference between atherosclerosis and arteriosclerosis. You say, "Well
A. atherosclerosis and arteriosclerosis are nearly the same and usually occur after a stroke." B. atherosclerosis is a condition that results from having angina pectoris occurring in the arteries of the heart, while arteriosclerosis results from the accumulation of cholesterol deposits in the arteries." C. atherosclerosis is a condition that results from the accumulation of cholesterol deposits in the arteries, while arteriosclerosis results from too much calcium being deposited in the arteries." D. atherosclerosis is a condition that results from too much calcium being deposited in the arteries, while arteriosclerosis results from the accumulation of cholesterol deposits in the arteries." E. atherosclerosis is a condition that results from too much calcium being deposited in the arteries, while arteriosclerosis results from having angina pectoris occurring in the arteries of the heart."
Four of the five answers listed below are
members of the same group. Select the EXCEPTION.
a. archaea b. protozoans c. ciliates d. dinoflagellates e. euglenoids
The dyactin complex acts only on actin filaments
a. true b. false
Why does sweating cool your skin on a hot, dry day but make you feel warmer on a hot, humid day?
What will be an ideal response?