What are 3 adaptations that make frogs amphibian?

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

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities

9. the history of life on earth is recorded in