When Reaching into Your Book Bag, You Accidentally Jab Yourself

question 312

Multiple Choice

When reaching into your book bag, you accidentally jab yourself on the sharp point of a pencil. You immediately move your hand away from the source of pain. The ability to move away when this happens is communicated to your muscles from your brain through:

• A) hormones.
• B) glia cells.
• C) motor neurons.
• D) sensory neurons.

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Definitions:

Land

In addition to the part of the earth’s surface not covered by water, this term refers to any and all natural resources (“free gifts of nature”) that are used to produce goods and services. Thus, it includes the oceans, sunshine, coal deposits, forests, the electromagnetic spectrum, and fisheries. Note that land is one of the four economic resources.

User Costs

Expenses incurred by consumers for the use of a good, service, or asset, including maintenance, repair, and operational costs.

Total Cost Line

A graphical representation showing the total cost of producing varying quantities of output.

Extraction Cost Line

A theoretical line representing the costs associated with extracting natural resources, considering factors like accessibility and resource depletion.