What is an effect of adaptive radiation?

A. Mass extinction

B. New species

C. Disruptive selection

D. Genetic drift

Adaptive radiation refers to the process by which animals diversify rapidly from the ancestral species into different forms especially when resources are abundantly available. The effect of adaptive radiation is the emergence of new species, which exhibit different morphological and physiological traits. Thus, the correct option is B. Four distinguishing characteristics of adaptive radiation are: a common ancestry, a phenotype/environment correlation, trait utility and rapid speciation.