The ________ suggests that speciation occurs in brief spurts.
A. adaptive model of the origin of species
B. allopatric speciation model
C. gradual model of the origin of species
D. punctuated equilibrium model
Answer:D
The ________ suggests that speciation occurs in brief spurts.
A. adaptive model of the origin of species B. allopatric speciation model C. gradual model of the origin of species D. punctuated equilibrium model