How do ocean currents affect the climate?

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

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

This rapid change in species that rarely leaves behind fossil evidence is referred to as