Ozone in the upper atmosphere

How do antiviral drugs work? in your own words.

Nerve cells are specialized to respond to stimulitrue or false?

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?