Practice!

Sample Problem

Why do seeds provide an evolutionary advantage?

(A) They help disperse offspring.

(B) They protect the embryo in unfavorable conditions.

(C) They ward off predators by secreting toxins.

(D) All of the above

Solution

(A) and (B) are correct. Seeds make it easier to disperse offspring, and they increase an embryo’s chance of survival. They do not secrete toxins (C).