Which source is least credible?
a)a blog post from a celebrity athlete
b)an article from the american cancer society
c)advice from a trusted health professional
d)a release from the u. s. food and drug administration

Which of the following foods would be the best choice for someone who's lactose-intolerant?   a.  frozen yogurt    b.  strawberry sorbet    c.  cheesecake    d.  chocolate ice cream

Astage in life where you begin to develop more adult-like characteristics is called

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.