Intercalated disks are found in:
a. smooth muscle
b. skeletal muscle
c. cardiac muscle
d. voluntary muscle
c. cardiac muscle
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Glycoprotein molecules
A) function as hormones from the pancreas. B) act as receptors on the surface of cell membranes and function as cell markers. C) act as receptors on the surface of cell membranes. D) are present in the secretions coating the respiratory tract. E) function as cell markers.
The two major divisions of the ventral body cavity are the
A) pelvic and thoracic. B) cranial and sacral. C) lateral and medial. D) thoracic and abdominopelvic. E) dorsal and ventral.
________ pair(s) of salivary glands secrete into the oral cavity
A) One B) Two C) Three D) Four E) Six to ten
Why do firms engage in price discrimination?
A) to decrease cost B) to increase profits C) to increase consumer surplus D) to prohibit the resale of their products