Use the Following Information to Answer the Next Few Questions

question 28

Multiple Choice

Use the following information to answer the next few questions.
While walking your dog one night, you notice that there are few animals making noise compared to the day. This piques your interest and you decide to perform a literature search. You discover that the 24-hour biological clock is a conserved evolutionary adaptation across many taxa, and is typically synchronized with periods of light and dark, where the animals are alert in the light periods and sleeping during the dark periods. The group of neurons that links the biological clock to environmental cues of light and dark is called the suprachiasmatic nucleus (SCN) .
-What would happen if the SCN were removed?

• A)The organism would exhibit severe and erratic mood swings.
• B)The organism would die.
• C)Rhythmicity in behaviours and electrical activity of the brain would be lost.
• D)Decision making would be impaired.
• E)The organism would have a memory defect.

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Definitions:

Somatosensory Area

A region of the cerebral cortex involved in processing sensory information from the body, including touch, temperature, and pain.

Stroke

A medical condition where poor blood flow to the brain results in cell death, leading to potential physical and cognitive impairments.

Sensitivity

Sensitivity is the ability to perceive and respond to changes in the environment or stimuli.

Motor Homunculus

A visual representation of the body within the brain, illustrating the proportion of motor cortex dedicated to each body part's motor function.