Which technique is used to separate the different cell parts?

Me the formula cacl2 represents the compound

How do the evolutionary chart and the video support the claim that all living things are made up of cells?

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.