The right answer is C
This process is called anaerobic respiration. It doesn't need dioxygen to occur (it can happen with or without O2).
Anaerobic respiration is a mechanism in which electrons pass through a chain of transporters whose final acceptor is a mineral substance other than oxygen, unlike aerobic respiration where the final acceptor is dioxygen. The final acceptor may be the nitrate ion (as in the case of Pseudomonas), carbon dioxyde or the sulfate ion.
Some bacteria (Pseudomonas) are able, anaerobically, to reduce nitrates to nitrites and then, depending on the case, to dinitrogen (with the enzyme Nitrate reductase A).
NO3- ==> NO2- ==> N2.
the answer is D.he conversion of restaurant grease to bio-diesel fuel for use by motorists.
<h2>Simple Interest on a Loans - Option C</h2>
The simple interest on loans of $200 at 10 percent interest per year is $20 per year until the loan is paid off. Interest per year means the expense of interest that is charged for annum as a percentage of the value which is hired.
In order to calculate interest per year, multiply the principal basis for the rent by the interest per year then divide the value of interest per year by 12 (number of months in a year). Therefore, for simple interest on loans of 200 dollars at 10 percent interest per year, we calculate 20 dollars per year until the loan is paid off.
Answer: parasitism
Explanation: Because it's relationship between two species of plants or animals in which one benefits at the expense of the other, sometimes without killing the host organism.