The enzyme nitrogenase is most directly involved in the process called

a. nitrification.
b. ammonification.
c. nitrogen cycling.
d. nitrogen fixation.
e. nitrogen assimilation.


D

Biology & Microbiology

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Which of the following is properly paired for the anammox reaction?

A. Sulfate (SO4-2) as the electron donor; Sulfite (SO3-2) as the electron acceptor B. Nitrate (NO3-) as the electron donor; Nitrite (NO2-) as the electron acceptor C. Phosphate (PO4-3) as the electron donor; Carbonate (CO3-2) as the electron acceptor D. Ammonium (NH4+) as the electron donor; Nitrite (NO2-) as the electron acceptor

Biology & Microbiology

____________________ molecules are responsible for the phenotype of an organism

Fill in the blank(s) with correct word

Biology & Microbiology

Characterize the pineal gland

What will be an ideal response?

Biology & Microbiology

The accuracy of the capture-recapture methods

depends on all of the following EXCEPT that a. marked individuals are recaptured at random. b. unmarked individuals are captured at random. c. none of the marked individuals are overlooked. d. no marked individual dies or departs during the study. e. no new individuals are produced during the study.

Biology & Microbiology