If all conditions of Hardy–Weinberg equilibrium are met,
a. allele frequencies move closer to each generation.
b. allele frequencies change in the direction predicted by natural selection.
c. allele frequencies stay the same.
d. all allele frequencies increase.
a
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Aside from the traditional hypothesis that life on Earth developed via organic compounds produced in
a reducing atmosphere, which of the following alternative hypotheses is most likely?
a. Life could have arisen from the organic compounds formed around hydrothermal vents far below the ocean floor. b. Life could have developed on another planet and was then delivered by meteorites. c. The organic compounds necessary for life were delivered to Earth by meteorites. d. Life on Earth may have arisen inside land-based volcanoes. e. The organic compounds necessary for life could only have been produced in an oxidizing atmosphere
Which of the following would not occur in the structure marked by the letter "A"?
a. warming of air b. odor detection c. gaseous exchange of oxygen and carbon dioxide to and from blood d. filtering of dust from air e. moisturizing of dry air
Only seed plants possess ovules.
a. true b. false
Which of the following statements regarding ELISAs is TRUE?
A) They are not quantitative. B) They require large amounts of serum. C) The antibody label is a fluorescent molecule. D) They can be used to detect antibody or antigen. E) They involve the use of membrane filters.