Genetic variation. C is the answer
<span>In general, most dna viruses multiply in the host cell's NUCLEUS, while most rna viruses multiply in the host cell's CYTOPLASM. </span>
C) is the answer, because when you exercise you're using your musles
Eukaryotic cells have chromosomes, a membrane-bound nucleus, and membrane-bound organelles, practically any living thing. Eukaryotic cells are also considered animal cells.
It could be both liver and oak.
It could also just be <u>liver</u> if it specifies eukaryotic animal cells.