Difference between endocytosis and exocytosis

How do accessory pigments chlorophyll?

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

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.