A, as with all organisms, growth is always the primary result of cell division, the mitosis type, meiosis cell division results in gametes (sperm and eggs)
Each chromosome (replicated or not) contains 2 chromatids.
DNA (or deoxyribonucleic acid) is the molecule that carries the genetic information in all cellular forms of life and some viruses. It belongs to a class of molecules called the nucleic acids, which are polynucleotides - that is, long chains of nucleotides.
There were 20 seats in each row
I think that it's weathering because weathering is the one that wears down the surface.