The skin makes up what percentage of body weight?
A. 25%
B. 50%
C. 15%
D. 10%
Answer: C
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In an isotonic contraction, the muscle ________.
A) changes in length and moves the "load" B) does not change in length but increases tension C) never converts pyruvate to lactate D) rapidly resynthesizes creatine phosphate and ATP
Imagine that you are able to monitor specific cell activity in the body. If you detected a dramatic decrease in osteoclast activity, which of the following characteristics would also be detectable?
A. Increased PTH levels in the blood B. Decreased calcitonin levels in the blood C. Increased calcitonin levels in the blood D. Decreased PTH levels in the blood
The Sertoli cell expresses the:
A. FSH receptor and the inhibin receptor B. FSH receptor and the androgen receptor C. LH receptor and the androgen receptor D. LH receptor E. FSH receptor
The long absolute refractory period of cardiomyocytes ________.
A. causes the pacemaker potential B. makes the heart prone to arrhythmias C. ensures a short twitch D. prevents tetanus E. prevents the occurrence of ectopic focuses