Background Extinction Rates Eliminate Approximately ____ Species ____

question 17

Multiple Choice

Background extinction rates eliminate approximately ____ species ____.

• A) 7-8; per 100 years
• B) 7-8; per 1000 years
• C) 7-8; per year
• D) 100; per year
• E) 100; per 1000 years

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Definitions:

Retinohypothalamic Pathway

A neural pathway connecting the retina to the hypothalamus, involved in regulating circadian rhythms based on light exposure.

Suprachiasmatic Nucleus

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

Optic Chiasm

Junction of the optic nerves, one from each eye, at which the axons from the nasal halves of the retinas cross to the brain’s opposite side.