Tracey has been unable to participate in her gymnastics class and has become very uncoordinated since she was involved in an accident where she suffered a head injury. as a result of the accident, she was likely to have suffered damage to her

The correct answer is: Cerebellum

Explanation:

Cerebellum is a part of the hindbrain and is found in the posterior cranial fossa in the cranial cavity.

This part of the brain receives inputs from the spinal cord and the brain and thus plays a crucial role in motor control. It is associated with timing, coordination, and precision.

It is also involved in the regulation of fear and pleasure responses, attention and language.

Since in the given example, after the accident Tracey is experiencing difficulty in coordination. Therefore, she has most likely damaged the Cerebellum.

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d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer