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):
When does mitosis occur in human cells? Mitosis occurs when tissues are damaged, for example, if there is a wound, mitosis is a rapid form of cell division that eventually heals to be new skin. Mitosis can occur in â¦the body anywhere, wherever new cells need to be produced to replace old or damaged cells.