A chiropractor. you might've heard about them 'cracking your back' professionally
Chromosomes. and these words are only because it needs to be 20 characters
Meiosis 1 results in two homologous chromosomes being pulled apart creating two chromosomes that share the same DNA, Meiosis 2 results in two sister chromatids being pulled apart, creating four haploid cells.
They are on the periodic table
Plants have a cell wall and chloroplasts; animal cells do not have either
Hope this helps : )