Doctors sometimes use computer models to track the spread of an infectious disease . how might this them better understand how to prevent the disease?

List the path of the respiratory system

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process

What is the name of the enzyme that forms at the start of transcription?