Answer; (not correctly matched)
Apocrine gland; Thermoregulation;
Explanation;
Apocrine glands are found in the skin and the eyelids.
Most apocrine glands in the skin are in the armpits, the groin, and the area around the nipples of the breast.
They are scent glands, and their secretions usually have a odor. They empty into the hair follicle just before they open onto the skin surface.
According to one source, a single almond will require about 1.1 gallons of water to grow, and one half-gallon carton of almond milk contains anywhere from 30 to a whopping 225 almonds.
B cytoplasm passes light threw the eye
Hii...so the answer is
The four layers are the external oblique, internal oblique, transverse abdominals.
hope u will like it.:)