In the female, the ____ acts as a temporary endocrine gland and secretes ____
a. pituitary; LH and FSH
b. corpus luteum; estrogen and progesterone
c. ovaries; estrogen and LH
d. endometrium; estrogen and FSH
e. uterus; LH and FSH
ANSWER: b
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The purpose of the Calvin cycle is to ____
a. convert inorganic carbon into a useable form of carbon b. recover electrons lost when water was split c. capture photons of light to harvest solar energy d. counteract increasing atmospheric CO2 concentrations (global warming) e. generate the O2 gas required for cellular respiration
Ernst Mayr was responsible for ____
a. discovering new species atop New Guinea’s Foja Mountains b. standardizing a two-part naming system c. explaining the theory of natural selection d. describing the biological species concept e. identifying that all organisms contain DNA
Female cardinals select male mates in part based on their bright red color. What effect would this have on a cardinal population that was in Hardy-Weinberg equilibrium?
A. The frequency of red alleles would be less than those predicted by Hardy-Weinberg equilibrium. B. The red allele frequencies would remain unchanged because of equilibrium. C. The frequency of red alleles would be greater than those predicted by Hardy-Weinberg equilibrium. D. The red allele frequencies would decrease because of equilibrium. E. The frequency of red alleles would be equal to those predicted by Hardy-Weinberg equilibrium.
Worms with a well-developed circulatory system (including five pairs of hearts) are
A) echinoderms. B) eels. C) nematodes. D) annelids. E) platyhelminths.