When two atoms share a pair of electrons, the bonding is referred to as:

A. ionic.
B. covalent.
C. unstable.
D. hydrogen.


B

Biology & Microbiology

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Answer the following statement true (T) or false (F)

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What are the helper and inducer cells?  

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The primary structure of a protein

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ALL hyperthermophiles with growth temperature optima above 100°C are found at

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