Multiple Choice
Darwin's theory was strongly founded on the geographic distances travelled by migrating species,or occupied by their populations.A theory of "Island Biogeography" was introduced in 1967,further elaborating on importance of the distances travelled,or areas occupied by populations.A specialized field of "Landscape Ecology" concerns patches of habitat,and distances between them,along with movement corridors,or barriers to movement.With all of these,the individuals that move about and successfully reproduce in the population
A) demonstrate gene flow that can counteract trends in selection and other allele frequency changes.
B) can be blocked by human construction of cities, or modification of vast landscapes for agriculture.
C) can be aided by human construction of artificial corridors of movement, such as rails and roadways.
D) All of the answer options are correct as possibilities for different species.
E) can reunite smaller groups of the species population that were previously isolated.
Correct Answer:

Verified
Correct Answer:
Verified
Q10: Sexual selection is a type of natural
Q14: A gradual change in an organism,from an
Q15: Evolution occurs in individuals,not populations.
Q15: The name for heritable traits that provide
Q16: Ancestors of the Galàpagos finches had two
Q18: When Conover and Munch harvested small fish,large
Q21: Carriers of cystic fibrosis have some protection
Q22: One concern of conservation biologists is that
Q23: Artificial selection is responsible for many breeds
Q24: Figuer: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4116/.jpg" alt="Figuer: