Question

a scientist is comparing the outer layer of an eye on sale to the outer layer of a human skin cell what is unique about the outer layer of the onion cell compared to the skin

Answer 1

The outer layer of the onion cell contains cellulose, protein, carbohydrates and is selectively permeable as compared to the skin cell.

The outer most layer of the skin is dead.

If we take on an average, human carry the total of 2 kg dead skin and billions of fragments is a loss of the skin every day.

Answer 2

The outermost layer of human skin is dead. It contains dead cells. The outermost layer of onion contains cellulose, protein, carbohydrates and is selectively permeable comparing to the skin cells. An human skin's outermost surface contains atleast two million dead cells. While the outermost layer of onion contains living cells which are rich in several minerals.