A control is a experimental variable that is kept constant or unchanged during an experiment. During a controlled experiment, the controlled variables are held constant to minimize or stabilize their effects on the subject, its unchanging state allows the relationship between the other variables being tested to be better understood.
The two cells fuze it's called fertilization. it produces 46 chromosomes twice the amount found in gamete than the fertilized egg is now called a zygote and now has the right DANA needed for a human development
Mitosis is the cell division in animal and plant cells