Movement of air into and out of the lungs is accomplished by the process of __________, whereas all movement of gases across membranes is by __________.
a. endocytosis; exocytosis
b. diffusion; osmosis
c. bulk flow; passive diffusion
d. pinocytosis; diffusion
Ans: c. bulk flow; passive diffusion
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When two or more presynaptic neurons synapse with a single postsynaptic neuron in the CNS, a/an ________ pathway is formed.
A. sensory B. convergent C. reverberating D. divergent E. somatic
In an epithelium, there is almost no extracellular matrix.
Answer the following statement true (T) or false (F)
When two bodies collide head-on and then continue to travel collectively in the original direction of motion of one of the bodies, what factor determines the direction of collective motion after the collision?
A. the relative momenta of the two bodies B. the relative masses of the two bodies C. the relative acceleration of the two bodies D. the relative weights of the two bodies
The major pathway of communication between the right and left hemispheres is the
A. longitudinal fissure. B. cerebral sulci. C. hypothalamus. D. corpus callosum. E. cerebral gyri.