What’s was the purpose of Miller and Urey’s experiment

Disinfection of impression materials is usually accomplished by a. sterilization with high heat. b. spray or immersion in a chemical disinfectant. c. sterilization with steam under pressure. d. allowing the impression to sit 24 hours in water until all the organisms die.

Diffusion and osmosis are forms of passive transport

Is dna the same in every cell in the human body explain your answer