Cougars are predators that often eat weakened or diseased animals. this is a description of the of cougars.

habitat

community

niche

none of these

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