Actin and myosin are found in
A. bone.
B. muscle.
C. cartilage.
D. blood.
Answer: B
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All muscle tissue develops from mesoderm
Indicate whether this statement is true or false.
The hormone hCG is necessary to
A. keep the corpus luteum from degenerating. B. cause the endometrium to proliferate. C. destroy the corpus luteum. D. stimulate primary oocytes to divide. E. form the corpus luteum.
Which of the following does NOT correctly depict the effects of parathyroid hormone (PTH)?
A) PTH stimulates osteoclast activity. B) PTH stimulates the intestines to absorb calcium ions. C) PTH weakens the bones. D) PTH decreases blood calcium ion concentration.
All of the following are changes due to age-related decreases in endocrine secretions, except
A. decrease in muscle mass. B. decrease in bone mass. C. change in sleeping patterns. D. increased susceptibility to infection. E. inability to regulate blood glucose levels.