Which air mass ALWAYS goes to the bottom when a warm and a cold air mass meet?

Heredity has an impact on personal health, but environmental factors are important as well. select the best answer from the choices provided

What is the next step in muscle contraction after the actin changes shape? (apex)

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