Eukaryotic that can reproduce sexually contain two types of cells

Only eukaryotes form multicellular organisms consisting of many kinds of tissue made up of different cell types. Eukaryotes can reproduce both asexually through mitosis and sexually through meiosis and gamete fusion. In mitosis, one cell divides to produce two genetically identical cells.

Amicroscope, because these cells are so small that you would not be able to see them, or what they attack without it.