Identical twins, Angela and Aisha, were both born with cystic fibrosis, a genetic disorder. As they grew older, Aisha was able to stay healthy for much longer periods of time than Angela.

Which statements best describe energy? check all that apply. the total amount of energy in the universe remains constant. the total amount of energy in the universe changes constantly. energy cannot be converted from one form to another. energy can be converted from one form to another. energy cannot be created or destroyed. energy can be created or destroyed.