Cells of the central nervous system that are in direct contact with the capillaries are:
a. astrocytes
b. ependymal
c. oligodendrocytes
d. microglia cells
Answer: a. astrocytes
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Which of the following is (are) true concerning
strength training? a. causes muscle fibers to thicken b. promotes synthesis of actin and myosin c. produces muscle fibers with little endurance d. produces muscle fibers that fatigue quickly e. all of these occur
Differential changes in phenology can result in a ________ of timing between herbivores and their resource
Fill in the blank(s) with correct word
____ is a breakdown in the walls of the alveoli which causes a reduction in gas exchange.
a) Bronchitis b) Asthma c) Emphysema d) tuberculosis
In most male animals, the penis or other copulatory organ achieves erection by
A. artery dilation or hemolymph pressure. B. bones or exoskeleton interlocking. C. muscle contraction. D. testicular pressure.