Food pyramid (nutrition) A food pyramid or diet pyramid is a pyramid-shaped diagram representing the optimal number of servings to be eaten each day from each of the basic food groups. The first food pyramid was published in Sweden in 1974.
Before partitioning can occur, the chromosomes must become aligned so that the separation process can occur in an orderly fashion. The alignment of replicated chromosomes and their separation into two groups is a process that can be observed in virtually all eukaryotic cells. Interfase must happen before mitosis can begin. Interfase is when the parent cell stores energy and becomes bigger so it can make the two daughter cells. Source(s):
DNA has to replicate before mitosis to keep the number of chromosomes and DNA in the cell consistent. Mitosis is the process of reproducing cells by splitting one cell in half â¦ to make two.If the DNA didn't replicate, the two daughter cells wouldn't be able to have a complete strand.DNA replicates by dividing in half, then creating a mirror image of itself.NA replication mus occur before mitosis starts. Mitosis is another  word for cell division and so there must be two copies of DNA for  each cell at the end stage.