The human knee-jerk reflex requires an intact _____

A) spinal cord
B) corpus callosum
C) cerebellum
D) medulla


A

Biology & Microbiology

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The common ancestor of all cells lived ________ years ago

a. 4.3 billion b. 7.4 billion c. 2.3 million d. 200 million e. 13 billion

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When you inhale, the diaphragm ________ and moves ________

a. relaxes, upward b. contracts, downward c. relaxes, downward d. contracts, sideways e. contracts, upward

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Lichen Micromorphology

What will be an ideal response?

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Which factor may influence the specific types of microbes found on the skin?

A) soap and cosmetics usage B) hormones C) moisture levels D) hormones, moisture levels, and soap and cosmetics usage E) moisture levels and soap and cosmetics usage

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