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A crenarchaea inhabiting a hotspring will: a. Prefer O2 as the most available electron acceptor b....

A crenarchaea inhabiting a hotspring will: a. Prefer O2 as the most available electron acceptor b. Prefer S as electron acceptor c. Will increase cysteine and serine in their proteins to increase their stability d. Will increase a concentration of biocompatible solutes (like K) to keep a a high salt internal content e. Will complete methanogenesis given the abundance of H2 and CO2

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a)Will prefer O2 as the most available electron acceptor

A crenarchaea inhabiting a hotspring will use ammonia as there energy source and for oxidizing ammonia they use oxygen as the electron acceptor and combine ammonia with oxygen releasing usable energy.

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