Asked by a<3
Living organisms can incorporate ________into their metabolism. (1 point)
ammonia
nitrates
nitrogen gas
nitrites
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nitrates
Explanation: Most plants and many microbes take up nitrate (NO3–) from the environment and reduce it to ammonium before incorporating it into amino acids. (Ammonium can also be directly assimilated; N2 is used only by nitrogen‑fixing prokaryotes; nitrite is usually an intermediate.)
Explanation: Most plants and many microbes take up nitrate (NO3–) from the environment and reduce it to ammonium before incorporating it into amino acids. (Ammonium can also be directly assimilated; N2 is used only by nitrogen‑fixing prokaryotes; nitrite is usually an intermediate.)
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