Filters
Question type

Study Flashcards

What is the biological significance of genetic diversity between populations?


A) Genes for traits conferring an advantage to local conditions make evolution possible.
B) The population that is most fit would survive by competitive exclusion.
C) Genetic diversity allows for species stability by preventing speciation.
D) Isolated populations become more fit.
E) Diseases and parasites are not spread between separated populations.

Correct Answer

verifed

verified

Community resistance refers to ________.


A) the ability of a community to maintain productivity and other aspects of ecosystem function as conditions change over time and to recover to former levels of productivity or species richness after a disturbance
B) the extent to which a community remains unchanged during a disturbance
C) how quickly a community recovers following a disturbance
D) how many species are in the community

Correct Answer

verifed

verified

Which of the following statements regarding extinction is (are) correct? I. Only a small percentage of species is immune from extinction. II. Extinction occurs whether humans interfere or not. III. Extinctions can be caused indirectly by humans.


A) only I
B) only II
C) only III
D) only II and III
E) I, II, and III

Correct Answer

verifed

verified

Showing 41 - 43 of 43

Related Exams

Show Answer