What are the four main ancestors of horses?

The evolution of the horse, a mammal of the family Equidae, occurred over a geologic time scale of 50 million years, transforming the small, dog-sized,[1] forest-dwelling Eohippus into the modern horse. Paleozoologists have been able to piece together a more complete outline of the evolutionary lineage of the modern horse than of any other animal.

false

Explanation:

the right flow is sun to producers to primary consumers to secondary consumers and heat loss

hope this helps