The correct order of the digestive tube layers, from lumen outward, is:
(1) mucosa
(2) muscularis externa
(3) serosa
(4) submucosa
A) 1, 4, 3, 2
B) 4, 1, 2, 3
C) 4, 2, 3, 1
D) 1, 4, 2, 3
E) 3, 1, 2, 4
D) 1, 4, 2, 3
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a) I band b) A band c) H zone d) Both I band and A band. e) All of these answer choices are correct.
Which of the male accessory glands encircles the urethra?
A. Prostate gland B. Cowper's gland C. Bulbourethral gland D. Seminal vesicle E. Urethral gland
Describe the basic processes in humans and other animals
A) digestion, secretion, reabsorption, and excretion B) respiration, digestion, circulation, and excretion C) blood pressure regulation, body fluid regulation, reproduction, and metabolism D) catabolism, anabolism, diffusion, and transportation E) defense, protection, movement, and elimination
What is the term that describes the production of red blood cells?
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