The function of the chorion is to:
a. absorb shock.
b. form blood cells.
c. provide nourishment.
d. permit freedom of movement.
e. permit gas exchange
e
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If a dimorphic fungus is causing a respiratory infection, which of the following might be seen in a sputum specimen from that patient?
A) amebae B) conidia C) hyphae D) yeasts
The largest and strongest males develop a
harem. b. A female bird will mate only with males that perform the best courtship displays. c. Members of a sorority usually marry fraternity brothers. d. Some males mate with any female they encounter. e. Female birds of paradise select the most colorful males as mates.
Radioactive radon gas is emitted from ____
a. rocks and soil b. medical x-rays c. cosmic radiation d. nuclear medicine e. uranium mines
If two alleles exist for a characteristic (A and a) and allele 'a' is lethal in homozygous individuals,
A. the frequency of the 'a' allele will remain constant. B. the 'a' allele will be eliminated from the population. C. the ‘a' allele is not likely to be eliminated from the population. D. the frequency of the 'a' allele will increase.