Two populations of plants look identical but their flowers are fertilized by different pollinators-one by a night-flying hummingbird moth, the other by honeybees. These two populations of flowers are examples of
A) identical gene pools.
B) different species.
C) identical evolutionary paths.
D) the same species using different pollinators.
E) groups within the same species.
B
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What is the process in which impulses jump from node to node?
A. facilitated transmission B. refractory action C. incomplete transfer D. repolarization E. saltatory conduction
Climate change leads to ____, which releases additional carbon dioxide into the atmosphere
a. increased frequency and severity of forest fires b. increased logging c. increased size of polar ice caps d. sea level reductions e. increased severity of volcanic eruptions
Effects of deforestation illustrated by the Hubbard Brooks Experimental Forest include all of the
following except:a. soil erosion. b. leaching of essential nutrient minerals. c. decreased soil fertility. d. higher summer temperatures in previously shady streams. e. acid deposition.
In somatic cell nuclear transfer, a somatic cell is injected into an ________ egg, thus providing a ________ nucleus.
Fill in the blank(s) with the appropriate word(s).