The Distance to the Andromeda Galaxy Is Estimated at About

question 42

Multiple Choice

The distance to the Andromeda Galaxy is estimated at about 2 * 10⁶ light years. A light year is the distance traveled by light in one year; if the speed of light is 3 * 10⁸ m/s, about how far is it from our galaxy to Andromeda? (1 year = 3.15 *10⁷ s)

• A) 10 * 10¹⁵ m
• B) 1 * 10¹⁸ m
• C) 2 * 10²² m
• D) 6 * 10¹² m

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Definitions:

Hindbrain

The rear portion of the brain that includes the cerebellum, medulla oblongata, and pons, involved in the regulation of heart rate, respiration, and balance.

Heartbeat

The rhythmic contraction and relaxation of the heart muscle that circulates blood throughout the body, crucial for maintaining life by supplying oxygen and nutrients.

Respiration

The biological process involving the exchange of gases between an organism and its environment, enabling breathing.

Instinctive Behavior

Instinctive behavior is an innate, unlearned response pattern exhibited by an organism when presented with certain stimuli.