Substitute Products

question 62

Multiple Choice

Substitute products

• A)reduce the attractiveness and profitability of an industry.
• B)represent those items manufactured by direct rivals within an industry.
• C)are usually cheaper than the products they can replace.
• D)are always a serious threat to rivals in an industry.

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Definitions:

Myelin

A fatty substance that forms a sheath around the axons of many neurons, increasing the speed at which electrical impulses propagate along the nerve cells.

Glial Cells

Non-neuronal cells in the central and peripheral nervous systems that provide support and protection for neurons.

Myelin Sheath

A fatty insulation that may surround the axon of a neuron.

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, responsible for processing information and controlling responses.