What is the part of the respiratory system that ensures that Air and food travel through their own separate pathways?

Name three bad things that can happen to a teenager who has no refusal skills and no self-control:

What is the best way to combat stereotypes in the workplace?

What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis.b) it converts host cell rna into viral dna.c) it translates viral rna into proteins.d) it uses viral rna as a template for making complementary rna strands.