The three pigments that contribute to skin color are ________, ________, and ________.
A) collagen; elastic; keratin
B) melanin; jaundice; erythema
C) sebum; sweat; urea
D) melanin; carotene; hemoglobin
Answer: D) melanin; carotene; hemoglobin
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The chamber of the heart forming the apex is the right ventricle.
Answer the following statement true (T) or false (F)
All of the muscle fibers within a single motor unit are of the ________ type(s).
Fill in the blank(s) with the appropriate word(s).
Urine passes from the renal papilla into a
A. major calyx, then to a minor calyx, then to a ureter. B. renal pelvis, then to a major calyx, then to a ureter. C. ureter, then to a minor calyx, then to a major calyx. D. collecting duct, then to a minor calyx, then to a major calyx. E. minor calyx, then to a major calyx, then to the renal pelvis.
The stress response is considered to include four stages: alarm, resistance, exhaustion and resolution.
a. true b. false