FSH primarily is secreted by the _______.
A. testis
B. hypothalamus
C. anterior pituitary
D. posterior pituitary
Answer: C. anterior pituitary
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The anticodon of a particular tRNA molecule is _____
A) complementary to the corresponding mRNA codon B) complementary to the corresponding triplet in rRNA C) the part of tRNA that bonds to a specific amino acid D) changeable, depending on the amino acid that attaches to the tRNA E) catalytic, making the tRNA a ribozyme
Most living organisms have an energy-supplying molecule known as ________.
What will be an ideal response?
Smooth muscle is found in the walls of the what?
What will be an ideal response?
As people age, their thymus shrinks. How does thymus shrinkage affect the effectiveness of vaccinations? Vaccinations will have no effect because the entire immune system is shut down
A. Vaccinations will be more effective because at birth your thymus made all the T cells you'll need for your entire life. B. Vaccinations will be less effective because B cells will not produce appropriate amounts of antibodies. C. Vaccinations will be less effective because T cell maturation is reduced. D. Vaccinations will be as effective in aging patients as in young patients because T cells develop in the bone marrow.