Punctuated equilibrium is:

a. a theory about the pace of evolutionary change in which rapid periods of evolutionary change are punctuated by longer periods with little change.
b. a theory about the pace of evolutionary change in which long periods of evolutionary change are punctuated by short periods with rapid change.
c. a way of explaining the idea of "evolution by creeps."
d. a way of explaining the idea of "evolution by jerks."
e. Both the first and fourth choices are correct.


Ans: e. Both the first and fourth choices are correct.

Biology & Microbiology

You might also like to view...

If ____ mutation(s) occur(s) in snails, the direction of coiling may reverse, which ____ mating

a. 1; encourages b. 1; prohibits c. 2; encourages d. 2; prohibits e. 3; encourages

Biology & Microbiology

The anticancer drug Gleevec works by blocking the ____________________-binding site of a protein,

which would otherwise activate a signal protein to induce cell division. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Hearing loss results from prolonged exposure to sound over ________

A) 85 dB B) 100 dB C) 60 dB D) This has not yet been determined.

Biology & Microbiology

Rapid inward diffusion of Na+ produces a dramatic change in membrane potential. What is this event called?

A. Depolarization B. Excitatory postsynaptic potential C. Saltatory conduction D. Monosynaptic reflex E. Hyperpolarization

Biology & Microbiology