A very large dog and a very small dog might be considered different species based on which of the following isolating mechanisms?
A) geographic
B) gamete
C) mechanical
D) temporal

Question

Quizplus · Accepted Answer

Mechanical isolation occurs when differences in physical structure prevent mating or fertilization between individuals of different species or populations. In the case of a very large dog and a very small dog, their significant size difference could physically impede successful mating, making mechanical isolation the correct isolating mechanism.

A Very Large Dog and a Very Small Dog Might