During orgasm, which of the following stimulate
rhythmic contractions of muscles in both males and
females?
a. LH
b. prostaglandins
c. testosterone
d. oxytocin
e. all of these
Answer: d
Biology & Microbiology
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Technique used to amplify a desired piece of DNA.
A. gel electrophoresis B. RFLP C. PCR D. plasmids E. Northern Blot
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Different clusters of related Galápagos finch species each occupy a somewhat different ____, a term that describes a
general way of life.
a. niche zone b. adaptive zone c. hybrid zone d. novel habitat e. disjunct habitat
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The letter B” in the above figure represents its
a. shell. b. mantle. c. gills. d. siphon. e. none of these.
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Diagram the life cycle of a pine. What will be an ideal response?
Biology & Microbiology