The rivers found in North America have always been an important natural resource for its human population. Historically, cities have always been located near major bodies of water because on water is more efficient than going over land. A. transportation

B. irrigation

C. recreation

D. life

not the best question format lol but what i think might as scale color is controlled by a single gene with two alleles, the green allele and the yellow allele. when moths that are homozygous for green scales are mated with moths that are homozygous for yellow scales, 100% of the offspring have green scales.

answer; i believe that the correct answer is(d) nondisjunction during meiosis;

the wires in the toaster turning red and the toast crisping and turning brown