You place different colored liquids in a hummingbird feeder and count how many hummingbirds visit. What is the manipulated variable and the responding variable?

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Identify the missing parts of the carbon cycle

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