Each of the following statements concerning hair is true except
A) the medulla is the soft core of the hair.
B) the cortex of the hair is composed of hard keratin.
C) terminal hairs are heavy and more darkly pigmented than other types of hair.
D) club hair is hair that has ceased growing.
E) scalp hairs grow constantly throughout life.
Answer: E
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Lymph nodes range in diameter from
A) 1 nm to 10 nm. B) 1 inch to 2 inches. C) 1 mm to 25 mm. D) 1 cm to 25 cm. E) 1 cm to 1 inch.
Compare the starts of intramembranous ossification and endochondral ossification
What will be an ideal response
Capillaries are connected to veins by ____
a. venules b. bronchioles c. arterioles d. lymphatics
Cells of the central nervous system that engulf and destroy cellular debris and bacteria are called:
a. astrocytes b. afferent neurons c. oligodendrocytes d. microglia cells