Bright-field microscopes are used for most microscopic work. true or false.

It should be cryosphere and hydrosphere

Ithink you should go back and learn in school rather then here asking questions

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.