I believe the answer is D. Though I could possibly be wrong
Answer:
Reduction of iron to prevent oxidation.
Explanation:
Bacteria has several mechanisms to protect the enzyme nitrogenase, one of them involves the increase of their metabolism to reduce the oxygen availability.
Besides this mechanism, there is also a conformational protection. This involves an interaction with FeSII protein, a ferredoxin. This protein is found as a homodimer that contains a 2[Fe-S] cluster, so reduction of Fe is not one of the mechanisms.
Answer:
Abiotic
Explanation: Water is not a living thing, therefore water is an abiotic factor.
If the sperm gametes that fertilizes an egg has an XX chromosomes, it will form female offspring. X is a female, XY is a female, Y is a male and XX is a female.
With many fossil fuels, such as coal, they contain some form of carbon, and when the fossil fuels are burned, they combine with oxygen to form CO2 (carbon dioxide) which is then released into the atmosphere.
