Where is the kidney located

Why was the sample heated in step 5? describe the chemical principles involved in the reasoning behind this step?

The response is the basis for vaccination. primary secondary tertiary none of the above

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half