Male pattern baldness occurs when terminal hairs on the head are replaced by ________.
Fill in the blank(s) with the appropriate word(s).
vellus hairs
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Lipoproteins are water-soluble because of a superficial coating of
A) cholesterol. B) bile salts. C) phospholipids and proteins. D) triglycerides. E) glycerol.
Which is not a reason the stomach is acidic?
A) Kills microorganisms. B) Emulsification of lipids. C) Denatures proteins. D) Helps break down plant cell walls and connective tissue in meat. E) Activates pepsin.
Which of the following empties directly into the hepatic portal vein?
A) lumbar veins B) the suprarenal veins C) superior mesenteric vein D) hepatic veins E) None of the answers are correct.
The stress response is considered to include four stages: alarm, resistance, exhaustion and resolution.
a. true b. false