Answer
Evolution is basically just the process in which different types of organisms have devoloped.
Easier way of saying it:
The gradual development of something
usually from something simple to something complex.
Have a great day :)
The correct answer is mitosis.
Mitosis is a part of the cell cycle and it is actually a cell division. The mother cell is divided to produce two new genetically identical daughter cells. It is important that during the mitosis is that each daughter cell gets a full set of chromosomes.
I'm almost positive it is tissue because all organ have tissue but most have muscles, blood, veins