Evolutionary radiation
A) is the formation of many new species from a common ancestor.
B) is always adaptive.
C) is common on isolated islands.
D) does not occur on large land masses.
E) Both a and c

Question

Evolutionary radiation
A) is the formation of many new species from a common ancestor. 
B) is always adaptive.
C) is common on isolated islands.
D) does not occur on large land masses.
E) Both a and c

Quizplus · Accepted Answer

Evolutionary radiation involves the formation of many new species from a common ancestor, which often occurs on isolated islands where there are fewer competitors and environmental pressures. Therefore, both option A and C are correct. However, there is no requirement that the radiation is always adaptive, so option B is incorrect. Evolutionary radiation can occur on large land masses, so option D is incorrect.

Evolutionary Radiation