Question

horses and zebras can be bred to produce a zorse, which is infertile. which is most likely the reason zebras and horse are considered separate species?
○ they cannot breed.
○ their offspring cannot breed.
○ they look different from each other.
○ they are found in different habitats.

Explanation:

A key biological definition of separate species is that when two organisms breed, their offspring are infertile (cannot produce their own offspring). The question states zorses (horse-zebra offspring) are infertile, which matches this criterion. The other options are incorrect: horses and zebras can breed, appearance and habitat do not define species status.

Answer:

Their offspring cannot breed.