Natural selection states that individuals a) with adaptive traits are more likely to survive. b) on the bottom level of a hierarchy have the greatest reproductive success. c) demonstrating altruistic behavior are the ones with the most mutations. d) remain unchanged over a period of time.

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.

In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.