Answer:
The answer to your question is: A and C.
Explanation:
A.the sugar Sugar is different between nucleotides from RNA and DNA, in RNA there is ribose and in DNA, deoxyribose.
B. the phosphate group it does not change between nucleotides.
C.the nitrogen group Nitrogenous bases change among nucleotides, there are 5 bases: Cytosine, Thymine, Uracil, Adenine and Guanine.
D. there is no differing structure in nucleotide This option is wrong because A and C change.
Yes, because the speed is the same even if the body mass index is different.
Staphylococcus Aureus is a gram-positive
The answer is natural killer cells.
Natural killer cells are a type of lymphocytes and they are important for the innate immune system. They recognise stressed cells much faster than other immune cells. Their response is rapid and usually only a few days after a viral infection. They also respond to <span>cancer cell </span>formation. While other immune cells can detect only those harmful cells that have specific markers on the surface of the cell membrane, natural killer cells can even detect those cells that miss markers for apoptosis.