Scientists study the composition of stars. They have recorded the four most common elements found in the stars. Star Composition
Element % of Total Mass
Hydrogen 71.0
Helium 27.1
Oxygen 0.97
Carbon 0.40

As stars age, which element will most likely decrease in mass percentage?

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