17. Describe the size and location (in the skin layers) of apocrine sweat glands. What type of glands are these? 18. What are the stimuli for producing apocrine sweat?

19. With what structure are sebaceous glands associated? What is the function of sebum?

20. Where are Ceruminous glands located? What is cerumenn ?

17.Apocrine. Apocrine sweat glands are found in the armpit, areola (around the nipples), perineum (between the anus and genitals), in the ear, and the eyelids. The secretory portion is larger than that of eccrine glands (making them larger overall).

Explanation:

19.Sebaceous gland, small oil-producing gland present in the skin of mammals. Sebaceous glands are usually attached to hair follicles and release a fatty substance, sebum, into the follicular duct and thence to the surface of the skin.

20.The ceruminous glands in the skin of the human external auditory canal are modified apocrine glands, which, together with sebaceous glands, produce the cerumen, the ear wax. Cerumen plays an important role in the protection of the ear canal against physical damage and microbial invasion.

the genotypes would be 50% bb and 50% bb

the phenotypes would be 50% brown and 50% white. hope this : )