A hair shaft is composed of
A) melanin.
B) carotene.
C) starch.
D) lipid.
E) keratin.
E) keratin.
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Simple sugars fed to a cow are utilized in the ________________________________________
Fill in the blank(s) with correct word
Keratinization
A. produces a layer of cells that resist abrasion. B. does not affect permeability characteristics of the epidermis. C. determines skin color. D. results in the formation of new epidermal cells. E. occurs in the dermis.
The common junction of the digestive, urinary, and genital systems is the ________.
A. allantois B. anus C. coelom D. hindgut E. cloaca
The penis contains three elongated cylinders of erectile tissue. Select the most dorsal tissue
A) corpora cavernosa B) corpus spongiosum C) corpus circularis dorsalis D) corpora elongus ventralis