"K" is the chemical symbol for

A. phosphorus.
B. potassium.
C. nickel.
D. krypton.
E. copper.


Ans: B. potassium.

Biology & Microbiology

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The United States is most likely to have a pyramid-shaped age structure because it has more older individuals than young ones.

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If you, like Mendel, grow plants in the lab, and cross short (tt) pea plants with short pea plants, the offspring will be

A. all tall. B. all short. C. nonexistent. D. a mix of tall and short. E. None of the answer choices is correct.

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What is meant by the term cotransformation?

A) An F? cell can become F+ several times in a life cycle. B) Cotransformation occurs when several linked genes are transformed simultaneously. C) Several pieces of DNA can form heteroduplexes in a cell. D) More than one phage infects a bacterial cell. E) A cell can pick up more than one F factor.

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What important metabolic intermediate does not cross the inner membrane of the mitochondria?

A. oxygen B. ATP C. pyruvate D. acetyl-CoA

Biology & Microbiology