This pigment in blood transports oxygen
The iron-rich, oxygen-transporting pigment in red blood cells which 
gives... [DOC] [TLE] hemoglobin facts, information, pictures | Encyclopedia.com articles ... [PAR] Haemoglobin combines with oxygen, enabling blood to carry 70 times more than 
if ... most molluscs have different and more primitive oxygen-carrying pigments,... [DOC] [TLE] Blood and the cells it contains - Blood Groups and Red Cell ... - NCBI [PAR] ... around the body.