Joan's inflamed and painful joints are likely due to which of the following chemicals?
A. platelet-activating factor
B. interleukin-5
C. prostaglandins
D. histamine
E. gamma interferon
Answer: C
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Changes seen in the onset of puberty are directly controlled by _____________ , and indirectly controlled by _______________.
A. Estrogen; FSH B. Estrogen; LH C. Progesterone; FSH D. Estrogen; GnRH E. Progesterone; LH
Why are echinoderms and chordates closely related?
A. Because they share adaptations that other phyla do not have B. Because they are often found together as fossils C. Because they have the same type of body symmetry D. Because they look similar
Which of the following would be considered a +/- relationship?
a) commensalism b) predation c) mutualism d) dominance
3PG. ATP and NADPH from the light reactions are then used to reduce 3PG to
What will be an ideal response?