There are two types of cell division. Mitosis is used for growth and repair and produces diploid cells identical to each other and the parent cell. Meiosis is used for sexual reproduction and produces haploid cells different to each other and the parent cell.
It produces thin slices of photography and extremely tiny things. The disadvantages are that its expensive, and you cannot test living things with it, its also massive
Im not writing your essay but some plants are used as medication and other remedies. plants are important because they provide food, medicine, oxygen, etc.