The partial pressure of oxygen in arterial blood is approximately mm Hg Group of answer choices 70 50 100 45 40

Gravitational force i believe

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.