If you were to rub your finger over the surface of your face, you would notice that the skin is oily. What makes up the oil?
A. Waste material (bilirubin) from dead red blood cells
B. Ruptured cells from sebaceous glands
C. Extracellular fluid not drained by the lymphatic system
D. Waste material from cellular metabolism
E. Plasma leakage from damaged blood vessels
Answer: B
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Sympathetic innervation of the hearta: increases the heart rate.b: decreases the heart rate.c: increases the force of contractions.d: decreases the force of contractions.e: has no effect on contraction force.
A. b, d B. a, d C. a, e D. b, e E. a, c
Which of the following is not a modification resulting from bipedalism?
A. The arches of the feet B. The abducted hallux C. The deep acetabulum D. The broad, curved ilium E. The angled femur
The function of the lens of the eye is to allow precise focusing of light on the retina
Indicate whether the statement is true or false
In their most primitive state, spermatogenic cells are referred to as ________
A) spermatozoa B) spermatogonia C) secondary spermatocytes D) spermatids