How might genotype frequencies change under directional selection?
A. Genotypes that represent larger individuals become more prevalent.
B. Genotypes that represent moderate-sized individuals become more prevalent.
C. Genotypes that represent both smaller and larger individuals become more prevalent.
D. Genotypes do not change under directional selection.
Ans: A. Genotypes that represent larger individuals become more prevalent.
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The cell wall is a common feature to
A. prokaryotic cells only. B. plant cells only. C. animal cells only. D. prokaryotic and plant cells. E. prokaryotic, plant, and animal cells.
This count of individuals refers to the __________
a. carrying capacity b. niche c. species diversity d. resource partitioning
Using prokaryotic organisms to remove pollutants from an environment is called which of the following?
a. epidemics b. pathogenics c. bioremediation d. biotransformations
Roots, used for anchoring the plant in soil and enhancing absorption of soil water and nutrients, evolved in the seedless vascular plant phylum ________.
A. Hepatophyta B. Monilophyta C. Bryophyta D. Lucophyta E. Anthocerophyta