C is the answer to the question
The answer is D. We can't directly use the nitrogen from the air so we need the bacteria to change it into something that we can use.
The enzyme DNA helicase is responsible for breaking the hydrogen’s bonds between DNA strands during the unwinding of the DNA.
The enzyme DNA polymerase is responsible for “reading” the template stand and adding corresponding nucleotides to replicate the DNA.
The cell would commit apoptosis. This is another term for cells committing suicide.