What does A = P = E(APE) mean? A. Atomic Mass = Protons - Electrons
O B. Atomic Number = Protons = Electrons

Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis

What are the characteristics of living things

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.