Adam remembers how delicious apples are, and when he eats one, it is broken down by his body into its building blocks. What two systems are involved here?

nervous and excretory systems

excretory and respiratory systems

nervous and digestive systems

excretory and digestive systems

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?