Dna replicates during which phase of mitosis

Which experiment would most likely contain experimental bias ?

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.

What materials must dams have to produce electricity, and what must occur?