Neuroglial cells
a. metabolically support other neurons.
b. form sheaths around neurons and increase
the rate of impulse transmission.
c. form more than half of the volume of the
brain.
d. provide physical support.
e. do all of these.
E
You might also like to view...
Which of the following statements about the movement of oxygen and carbon dioxide in complex multicellular organisms is true?
A. Their movement by diffusion into and out of cells is limited to just a few layers of cells. B. They are moved into and out of cells by specific transport proteins. C. Bulk transport systems are required in macroscopic organisms to facilitate the transport of carbon dioxide and oxygen.
It has been suggested that chaperonin overexpression in cells promotes genetic variation and enzyme evolution. This is probably because chaperonins can:
A. alter the accuracy of transcription. B. alter the accuracy of translation. C. promote degradation of less stable protein variants. D. promote folding of less stable protein variants. E. form aggregates with increased binding capabilities.
The largest lymphatic duct, which runs along the anterior vertebral column, is the ______.
What will be an ideal response?
Why are top-level predators like lions and eagles so rare in a community?
A. Only a small amount of the energy is passed from one trophic level to the next. B. They do not breed as fast as other animals. C. Predation by higher predators reduces their numbers. D. It is difficult for them to learn how to capture prey. E. Their job is to keep the population size of other animals in check.