Question

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

Explanation:

According to the biological species concept, two organisms are different species if their offspring are infertile. Since the zorse (offspring of horse - zebra cross) is infertile, horses and zebras are separate species. Appearance and habitat are not the main criteria for species definition. And it is known that they can breed to produce a zorse.

Answer:

Their offspring cannot breed.