It is essential because without it plants would have no source of energy. Therefore disrupting the whole food chain.
Interphase isn't part of mitosis because the cell doesn't divide in interphase.
germ cells
it occours in the germ cells
I believe the answer is comparative anatomy. It is the study of the similarities and differences in the structures of different species. Similar body parts may be homologies or analogies, such that both provide evidence of evolution. Similarities in embryos are evidence of common ancestry. For example all vertebrates embryos have gill slits and tails.