Binding sites on the surface of actin allow the formation of cross-bridges with molecules
of
A) ATP. B) tropomyosin. C) troponin. D) myosin.
D
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Caloric intake exceeding caloric output is a positive energy balance.
Answer the following statement true (T) or false (F)
Renin is released from the JG apparatus in response to
A. high blood pressure or increased NaCl in the fluid within the distal convoluted tubule. B. high blood pressure or decreased NaCl in the fluid within the distal convoluted tubule. C. low blood pressure or increased NaCl in the fluid within the distal convoluted tubule. D. low blood pressure or decreased NaCl in the fluid within the distal convoluted tubule.
Auditory "startle" reflexes originate in the:
a. precentral gyrus b. superior colliculi c. inferior colliculi d. intermediate mass
The layer that is responsible for the motility that propels food and residue through the digestive tract is called the ________
A) serosa B) lumen C) muscularis externa D) submucosa E) mucosa (mucous membrane)