Whales in bats have similar arms bones this can be explained by the presence of a

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Are the earth's ocean floor and continents the same age geologically? why or why not?

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4