According to the concept of punctuated equilibrium, the ...

[j_sun]

According to the concept of punctuated equilibrium, the "sudden" appearance of a new species in the fossil record means that
A) the species is now extinct.
B) speciation occurred instantaneously.
C) speciation occurred in one generation.
D) speciation occurred rapidly in geologic time.
E) the species will consequently have a relatively short existence, compared with other species.

[coco]

Hey again

I'm guessing it's D. It makes sense.

[j_sun]

You're the best, thank you