Question

Scientists discovered fossil evidence of mesohippus, an ancestor of the modern horse. Mesohippus lived in North America about 40 million years ago. Mesohippus was about two feet tall, ran on hooves with three toes, and had large, grinding teeth. It is believed that these early horses lived in the thick forests. What may have helped horses change over the last 40 million years?

Answer 1

B is correct. Here's why:A states that horses were once carnivores. Large, grinding teeth isn't used by meat eaters; those would be sharp, serrated teeth. This is incorrect. C talks about migration from S.A. to N.A., and nowhere in the statements above does it mention South America, so that's incorrect as well (unless you know something I don't)D states that horses share a common ancestor with all mammals. I don't believe the mesohippus was the ancestor of any dolphin species. Hope this helps!

Answer 2

Option C

Step-by-step explanation:

Please see thee attachment