How does the temperature level in the pond affect the health of the fish?

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

Iwanna go do something with my ideas? ?

Plz ! what does it mean for an allele to be dominant?