The migration of breeding individuals between populations causes a corresponding movement of
alleles, which is referred to as:
a. genetic drift.
b. directional selection.
c. natural selection.
d. gene flow.
e. mutation.
D
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CO2 and other gases, which absorb the longer wavelengths of infrared light and radiated heat from Earth, are responsible for causing the
A. ozone layer depletion. B. greenhouse effect. C. decreased biodiversity. D. acid rain.
____ are good examples of consumers
a. Omnivores b. Detritivores c. Herbivores d. Carnivores. e. All of the above.
What are the two most important variables for cells to survive?
a. Temperature and pH b. Temperature and solute concentration c. Solute concentration and nutrient levels d. Solute concentration and pH e. Temperature and nutrient levels
Protists are
a. autotrophic. b. heterotrophic. c. unicellular. d. multicellular. e. all of these.