Answer:
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air.
Explanation:
The answer is c because boy have the same rock layer you can use they key to help you
They concluded that horses evolved with the emergence of grasslands and an increase of predators. The digits of their early Eocene ancestor evolved into hooves.
Transporting substances in a cell. proteins are transported either in or out of the cell.
