A porpoise and a dolphin, both mammals, mate and produce an embryo, but the embryo fails to complete development. This event describes:
A) hybrid sterility.
B) hybrid inviability.
C) hybrid breakdown.
D) gametic isolation.
E) gestational abortion.

Question

Quizplus · Accepted Answer

Hybrid inviability occurs when a fertilized egg from two different species fails to develop properly or survive to birth, which is the case described with the porpoise and dolphin embryo.

A Porpoise and a Dolphin, Both Mammals, Mate and Produce