Genetic change in a population through multiple generations defines which of the following?
A. heredity
B. mitosis
C. phenotype
D. evolution
E. genotype
Answer: D. evolution
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Which of the following exhibits a Type III survivorship curve?
a. oak tree b. sparrow c. human being d. whale
The protein profiles for the Aa and AA individuals are
a. identical. b. similar. c. different.
After a copper smelter begins operation, local downwind populations of plants begin to adapt to the resulting air pollution. Scientists document, for example, that the acid tolerance of several plant species has increased significantly in the polluted
area. This is an example of A) stabilizing selection. B) disruptive selection. C) directional selection. D) genetic drift.
Ultimately, the signal from a peptide hormone is typically conveyed to the effectors in the cell via the transfer of what molecular moiety?
A. H2O B. Phosphate group C. Amino acid D. NO (nitric oxide) E. Nucleotide