The chemical properties of an atom are determined by its ________.
A. neutrons
B. particles
C. protons
D. electrons
E. protons and neutrons
Answer: D
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Which of the following diseases would originate in the abdominopelvic cavity?
A. Myopia (near-sightedness) B. Laryngitis C. Pancreatitis D. Asthma
Sweat glands contain ____________.
A) alpha-1 receptors. B) alpha-2 receptors. C) cholinergic receptors. D) beta receptors. E) All of the answers are correct.
Which of the following statements about the Na+-K+ pump is incorrect?
a. Phosphorylation of the pump must occur before K+ can attach to its binding site. b. It has ATP synthase activity. c. It helps decrease Na+ and K+ concentration gradients across the plasma membrane. d. It regulates cell volume by controlling the concentration of solutes inside the cell. e. Its action is important for secondary active transport.
What type of tissue is made of cylinders called osteons or Haversian systems?
A. Adipose tissue B. Compact bone C. Hyaline cartilage D. Spongy bone