Question

Skin cells at the surface of the epidermis die because they:
Group of answer choices

are too far away from the blood supply to receive oxygen and nutrients.


just divided and their new living copies are moving down into the epidermis.


do not receive oil from sebaceous glands, due to their lack of ducts.


are exposed to salts from sweat that is secreted onto the skin surface.

Answers

Answered by GPT-4o mini
The correct choice is:

**are too far away from the blood supply to receive oxygen and nutrients.**

As skin cells in the epidermis move upwards from the basal layer toward the surface, they eventually become too far away from the blood supply in the underlying dermis, which leads to their death as they cannot receive the necessary nutrients and oxygen.
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