DNA which is found in the Nucleus
Number 6. Response to stimuli. At least I think. Or 6, homeostasis.
Cells are not simple structures at all. They have numerous organelles and serve numerous functions working together with millions of other cells. They are highly complex machines on their own that are combined with other highly complex machines to build anything, from smallest to largest organisms. For some unicellular ones they even do other things that cells in multicellular organisms don't.
Answer:
B
(The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides. This is why DNA replication is described as semi-conservative, half of the chain is part of the original DNA molecule, half is brand new.)