From the pharynx, a bolus moves next into the:a
mouth.
b. small intestine.
c. large intestine.
d. stomach.
e. esophagus.
E
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While water continually orients phospholipids into a lipid bilayer, it does not fix the lipids permanently into position. Thus, the bilayer is considered to be _______.
A. static B. fluid C. fluctuating D. charged
Why does hair color vary among humans?
A. environment B. genetics C. both D. neither
A rise in the blood concentration of hydrogen ions will make the blood more acidic and cause a(n) ________ to restore homeostasis
A) increased vagus nerve impulse B) relaxation of the diaphragm C) increased breathing rate D) decreased breathing rate
The ________ is a bacterial regulatory mechanism used to survive nutrient-poor conditions, antibiotic exposure, and environmental stresses
a. catabolite repression b. heat shock response c. stringent response d. two-component system