Angelica is conducting an investigation. an advantage of her design is that it can be repeated, but a disadvantage is that it is difficult to control all of the variables. what kind of investigation is angelica most likely conducting? descriptive experimental comparative collective

According to the loco mass the mass of reactants and products

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.

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.