According to the punctuated equilibria model, ________.
A) given enough time, most existing species will branch gradually into new species
B) most new species accumulate their unique features relatively rapidly as they come into existence, then change little for the rest of their duration as a species
C) most evolution occurs in sympatric populations
D) speciation is usually due to a single mutation

Question

Quizplus · Accepted Answer

The punctuated equilibria model suggests that species experience most of their morphological changes relatively quickly in geological terms at the time of their formation, after which they exhibit little change for the remainder of their existence. This contrasts with the gradualism model, which posits that evolution occurs steadily over time.

According to the Punctuated Equilibria Model, ________