Glial Cells

question 138

Multiple Choice

Glial cells

• A) only provide structural and metabolic support.
• B) only guide neurons during growth and repair.
• C) only help maintain homeostasis of the brain's extracellular fluid.
• D) provide structural and metabolic support and help maintain homeostasis of the brain's extracellular fluid.
• E) All of the answers are correct.

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Definitions:

Variable Factor

In economics, an input in the production process that can be adjusted in the short run to change the quantity of output.

Fixed Factors

Inputs in the production process that cannot be easily increased or decreased in a short period of time.

Constant Returns To Scale

a situation in production where increasing all inputs by the same percentage results in output increasing by that same percentage.

Long-run Profits

The potential earnings of a business over a period long enough for all inputs to be adjusted, considering the firm's ability to enter or exit markets.