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Nitrogen is the most abundant element in the atmosphere, and a crucial component of proteins, ...

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Nitrogen is the most abundant element in the atmosphere, and a crucial component of proteins, ...

Nitrogen is the most abundant element in the atmosphere, and a crucial component of proteins, vitamins, and nucleic acids. However, plants and other producers cannot use nitrogen in its natural form (N2). Nitrogen has to undergo a process called nitrogen fixation. What does this process involve?
A) Nitrogen is accumulated in dead organic matter.
B) Ammonia is converted to nitrate.
C) Nitrate is converted to ammonia.
D) It is undertaken by denitrifying bacteria.
E) It is the synthesis of ammonia from nitrogen gas by certain bacteria.

Textbook

Biology: Life on Earth

Edition: 10^th

Authors: Audesirk, Byers

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