Which is not an example of secondary succession?

A. Regrowth of forest on abandoned farmland

B. Lichen colonization of a rock field exposed by retreating glacier.

C. Weeds poking up through a gravel driveway.

D. New growth after a hurricane.

B seems to be the only reasonable answer

Explanation:

Only one of the three that really differs from the others

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.