Most humans need about ________ kcal per day

A) 500-700
B) 1,300-1,800
C) 2,500-3,000
D) 20,000-30,000


B

Biology & Microbiology

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Indicate whether the statement is true or false.

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Which of the following cannot be infected by viruses?

a. algae b. bacteria c. animals d. all of these can be infected by viruses

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In covalent bonds, ____.

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