How do animals survive without cell walls?

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

Ais a group of individuals of the same that exist together in the same place at the same time

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.