Because of the pigments. Like chlorophyll pigment is always green. Specific colors of light and reflect other colors, depending on their chemical structure.
Nearly every cell in a person's body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
1.they have slime molds.
2.they also have have water molds.