Which germ layer are the bones (except facial) derived from?
A. ectoderm
B. mesoderm
C. endoderm
B
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A tonsillectomy or adenoidectomy is contraindicated in what conditions? (Select all that apply.)
a. Cleft palate b. Seizure disorders c. Blood dyscrasias d. Sickle cell disease e. Acute infection at the time of surgery
The white portion of the eye is called the ________________________________________
Fill in the blank(s) with correct word
__________, the hormone produced by the C cells of the thyroid gland, exerts an influence on plasma Ca2+ levels
Fill in the blank(s) with correct word
Suppose 1 molecule of hormone X activated 10 G proteins, each G protein activated 10 adenylate cyclase molecules, each adenylate cyclase made 1,000 cAMP molecules, and each cAMP activated 1,000 enzyme molecules. This would be a case of
a. a synergistic effect. b. hypersecretion. c. up-regulation. d. enzyme amplification. e. negative feedback inhibition.