How does the introduction of a geographic barrier encourage the evolution of species? What will be an ideal response?
A population that is not separated will interbreed, so there will be little opportunity for different
species to form. If a barrier separates that population and if conditions are different on either side of
the barrier, natural selection will favor certain traits over others, and over time the two different
populations of organisms may evolve to become different species.
You might also like to view...
Because of the nature of the world-wide climatic conditions in the Mesozoic, organisms ____
A)had few habitats to occupy B)could occupy extensive geographic regions C)could only occupy restricted geographic regions D)were not affected E)stayed where they were
Metallic ores are created at diverging plate boundaries
A. in lava flows B. in sedimentary deposits C. through metamorphism D. through hydrothermal processes
Where is most oxygen located?
A. Mesosphere B. Thermosphere C. Stratosphere D. Troposphere
The frictional force effect on winds
A) is negligible at altitudes above 500 m (~1,600 ft). B) increases with increasing altitude. C) is constant, regardless of time of day or year. D) is greatest in the upper troposphere. E) is lessened in areas with rougher surfaces.