Repetition of an experiment ________.
Fill in the blank(s) with the appropriate word(s).
Answer: is necessary before concluding that a given set of results is correct
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Lipids are the only class of macromolecules that contain:
A. amino acids. B. nucleotides. C. fatty acids. D. phosphate groups. E. monosaccharides.
Inside the CNS, groups of neuronal cell bodies that are clustered together to perform basic functions are termed
A. nerve nets. B. ganglia. C. nuclei. D. spinal cords. E. soma.
Sexual selection:a
is the basis for establishing elaborate societies. b. leads to a reproductive advantage for some individuals over others of the same sex and species. c. favors monogamous mating systems. d. leads to the investment of parental care of offspring. e. is not a type of natural selection.
Gaps in fossil record _____________.
a. demonstrate our inability to date geological sediments b. are expected since the probability that any organism will fossilize is extremely low c. have not been filled in as new fossils have been discovered d. weaken the theory of evolution