As Additional Units of an Input Are Employed,the Marginal Product

question 29

Multiple Choice

As additional units of an input are employed,the marginal product of the input is

• A) always increasing.
• B) always decreasing.
• C) constant.
• D) eventually increasing.
• E) eventually decreasing.

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Definitions:

Microglial Cell

A type of glial cell located throughout the brain and spinal cord, which acts as the first and main form of active immune defense in the central nervous system.

Ependymal Cell

Glial cell that makes and secretes cerebrospinal fluid (CSF); found on the walls of the brain’s ventricles.

Oligodendroglial Cell

A type of glial cell in the central nervous system responsible for the formation and maintenance of myelin sheaths around neurons.

Schwann Cell

A type of glial cell located in the peripheral nervous system that wraps around nerve fibers, forming the myelin sheath which speeds up electrical impulses.