2.Horse skeleton fossils indicate that the size of horses increased over time. Which statement best
explains this fossil record?
A. Smaller horses bred with larger horses, creating
hybrids.
B. Smaller horses were infected by a fatal virus
early in their history.
C. Larger horses consumed the food supply of the
smaller horses.
D. Larger horses produced a slightly greater
number of surviving offspr

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.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.