All mammals rely on intestinal bacteria to synthesize

A. bile.
B. vitamin D.
C. some amino acids.
D. vitamin K.
E. calcium.


Answer: D

Biology & Microbiology

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Which of the following components is involved in the initiation of transcription?

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A muscle that causes any type of movement in a joint when it contracts is called a(n) ____

a. flexor b. agonist c. depressor d. antagonist e. extensor

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In a __________, water or some nutrient moves from

an environmental reservoir, through organisms, then back to the environment. Fill in the blank(s) with the appropriate word(s).

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Lactic Acid and Cavities

What will be an ideal response?

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