Earth's 24-hour rotation rate is one of thing that makes our planet so friendly to life, allowing most parts of Earth to stay a nice, comfortable temperature as we experience day and night. However, scientists are worried because Earth's rotation is slowing down. Hypothesis what you think could be the cause of Earth's slower speed?

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.