According to the image above, the four species share structures which indicates that they all share a ancestor. Analysis of the embryonic structures for these four species would show similarities for
these vertebrates. The process of provided the mechanism for these four species to become adapted to their specific
habitats over time.

Word bank: common, few, fossilized, genetic drift, high levels of, homologous, natural selection

homologous, high levels of, natural selection

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.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles