1. List three basic categories into which galaxies are classified. Describe each category 2. Explain how our perspective, looking at the galaxies from Earth, affects the classification of these galaxies.

3. Observe the background stars in the Galaxies tab. Are the background images accurate, showing actual stars and actual arrangements of stars, or are included to just give you a sense of other stars and galaxies in the background?

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