Changes in allele frequency are always driven by natural selection.
true or false?

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun

Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?