Which of the following could be classified as a postzygotic barrier leading to speciation?
a) Two populations are isolated from each other by a mountain range.
b) The sperm from males of one population cannot reach the egg in the ovaries of females in another population.
c) Offspring from a mating between members of two populations are sterile.
d) Two populations have different courtship rituals required for mating.
e) The reproductive anatomy of those in one population prevents them from mating with another population.
Ans: c) Offspring from a mating between members of two populations are sterile.
You might also like to view...
Outline the four characteristics of cancer
What will be an ideal response?
The pain produced in an internal organ may be perceived as occurring somewhere else. This phenomenon is called ____.
A. mixed nerve messages B. referred pain C. phantom pain D. psychosomatic pain E. hypochondria
Describe at least three physical mechanisms that are part of the first line of defense
What will be an ideal response?
A person with a diet very low in iron may not be able to make enough of a formed element in the blood called ________
Fill in the blank(s) with correct word