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Tutor profile: Kimberly G.

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Kimberly G.
University of Michigan Movement Science Graduate
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Questions

Subject: Health and Medicine

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Question:

The list of medical documents and procedures that a patient will refuse is called:

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Kimberly G.
Answer:

The Advanced Directive

Subject: Biology

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Question:

Natural selection changes the traits of a population. Mice in the dessert begin as an even distribution on the spectrum of white, grey, and black. The soil composition changes and the major soil contents are now grey. By matching their environment, the mice can escape predators, such as hawks. What is the population shift that occurs after the soil change?

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Kimberly G.
Answer:

Stabilizing Natural Selection occurs. The grey color is favored, narrowing the distribution of preferred traits. The Hawks will eat the white and black mice, meaning they will have less chance for reproduction than the grey mice. Over time, the ratio of grey mice will increase and the outlying traits will decrease.

Subject: Anatomy

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Question:

The brain is cushioned by clear fluid known as cerebral spinal fluid (CSF). It serves as a 'shock absorber' for the brain during movement and trauma. Where is the vital CSF primarily produced in the brain?

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Kimberly G.
Answer:

The choroid plexus produces CSF. The choroid plexus is found in the ventricles of the brain. It also helps to form the 'Blood-Brain Barrier'. Modified ependymal cells cover the choroid plexus cells and are the cells responsible for producing CSF.

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