The the loudness of a sound is determined by the or height, of the sound wave. a. frequency b. purity c. amplitude d. pitch select the best answer from the choices provided a b c d

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?