What is the effect of antidiuretic hormone on the cells of the collecting duct?

Select all the true statements about the cosmic microwave background radiation

One of the purposes of transcription is to produce a sequence of bases that

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?