. During a field study of Meerkats in South Africa, scientists noted the number of adults in the population had increased. The adult population was higher than in
previous observations.
A possible explanation for this increase is -

A. Lower life expectancy
B. increase birth rate
C. reduction in death rate
D. Higher infant mortality

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.