What is the partial pressure of oxygen in air at sea level?

A) 160 mm Hg
B) 210 mm Hg
C) 400 mm Hg
D) 60 mm Hg
E) 600 mm Hg


Ans: A) 160 mm Hg

Biology & Microbiology

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Because it has no introns, researchers prefer to use

__________ when working with eukaryotic genes. a. cDNA b. single-stranded DNA c. hybridized DNA d. bacterial DNA e. viral DNA

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Fire can move, grow, reproduce, use energy, consume oxygen, and interact with its environment. Why is it not alive?

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Which statement about the interaction between genes and environment is most correct?

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