Can anyone help me? Question: In humans CC=curly hair, CS=wavy hair and SS=straight hair. Draw the Punnett square for CS X SS. Give the phenotypic ratio for the offspring. What situation caused CS to be wavy?

Lacking something of the ozone layer

The process of photosynthesis

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.