[Taxacom] I NEED HELP

[tlahuiz hp]

hello, my name is fred, i am a student of biology at the Universidad Autonoma del Estado de Hidalgo, currently in fifth semester course and have been the subject of systematic, in which we have been asked to make a final work. I have chosen the theme of the existence of human races or species?, and I would like that someone could provide me a guide to developed this topic.
 thank you in advance for your help 		 	   		  
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