Explain how a change in the environment can cause the disappearance of traits or possibly cause an extinction of a species.

On edgenuity it is d: watermelons 

Many archeologists and anthropologists disagree with dr. thorne's view.  thorne strongly believes that what many calls "homo erectus"  was in fact  homo sapiens,  and that they migrated out of africa almost 2 million years ago and dispersed throughout europe and asia. that's way different  from what scientists have always believed about the evolution of the species.