Chronically high blood pressure is called
a. ventricular fibrillation.
b. hypertension.
c. leukemia.
d. sickle-cell anemia.
e. a stroke
B
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Roots and shoots lengthen through activity at _____
a. apical meristems c. vascular cambium b. lateral meristems d. cork cambium
The type of neuron that conducts its message from the central nervous system toward an effector is the
A. synaptic neuron. B. interneuron. C. motor neuron. D. sensory neuron. E. Schwann cell.
Nonspecific cell responses depend on the actions of lymphocytes, natural killer cells, and dendritic
cells. ____________________ Indicate whether the statement is true or false.
All the following are true of B vitamins EXCEPT
a. they are water soluble. b. they serve as coenzymes. c. they can be lost during food processing and preparation. d. they are stored in adipose tissue.