Cindy Discovers That When She Goes to the Beach, She

question 11

Multiple Choice

Cindy discovers that when she goes to the beach, she does not have to bring her radio. She can put her blanket near someone who has a radio and listen all day (without having to carry her radio, get sand in her speakers, or buy new batteries) . This is an example of:

• A) private property abuse.
• B) external costs.
• C) a negative externality.
• D) a positive externality.

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Definitions:

SCN

Short for Suprachiasmatic Nucleus, a region in the brain responsible for controlling circadian rhythms.

Suprachiasmatic Nucleus

A small region in the brain located in the hypothalamus, responsible for controlling circadian rhythms.

Intergeniculate Leaflet

The intergeniculate leaflet is a small structure located between the lateral geniculate nucleus of the thalamus, involved in regulating circadian rhythms and visually related information processing.

Retinohypothalamic Tract

Neural route formed by axons of photosensitive retinal ganglion cells (pRGCs) from the retina to the suprachiasmatic nucleus; allows light to entrain the SCN’s rhythmic activity.