The elements potassium and rubidium are alkali metals. How do alkali metals differ from other metals?
O A. They have higher densities.
OB. They have higher reactivities.
O c. They have higher melting points.
D. They have higher electronegativities.

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.

Probably a mushroom or a tomato plant