How does the extinction of a species affect humans ? a. extinction contributes to the loss is natural food sources. b. extinction generates new sources of medicine c. extinction keep air and water clean d. extinction makes the environment more pleasant

Which experiment would most likely contain experimental bias

How do cells grow and reproduce to maintain homeostasis?

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