Which of the following is an important force for evolution?
A. Mutation
B. Genetic drift
C. Migration
D. Natural selection
E. All of the above
E. All of the above
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Ghost shrimp live:
a. in burrows. b. under rocks on the mud flat. c. on the surface of the mud. d. in the water above the mud flat. e. symbiotically with bivalves.
, gene swapping between two species is
A. impossible, but it happened frequently in the distant past. B. infrequent but possible; it happened more often in the distant past. C. much more frequent compared to in the distant past. D. only possible if they are in the same family of organisms, such as lions and tigers.
SINEs in molecular phylogenetics are
a. Substituted Integrated Elements. b. Short Interspersed Elements. c. Single Insertion Elements. d. Smart Innovative Entrepreneurs. e. Species Inter-related Elements.
Which of the following would be a primary consumer?
A. tree B. decomposer C. carnivore D. herbivore