What class of barrier to gene flow would we be observing if we noted that the offspring of a lion and a tiger (two different species) are awkward, gangly beasts that have poor survival in the wild? group of answer choices.
(a)-premating barrier
(b)-prezygotic barrier
(c)-temporal isolation
(d)-geographic isolation (e)-postzygotic barrier

The correct answer is option (e)-"Postzygotic barrier".

Explanation:

A postzygotic barrier is a mechanism that reduces the viability and reproductive success of hybrid offsprings. In this case, a lion and tiger have an offspring that have poor survival in the wild. This is an example of postzygotic barrier, the offsprings are called ligers or tigons, which are rare in nature since they do not live long and have poor reproductive success.

the fossil record provides evidence of a common ancestor to many species.