Which of the following is not an example of interactions between biotic and abiotic factors in an ecosystem? a. flowers opening at dawn and closing at night b. bears hibernating in winter c. male elk fighting over a female d. monarch butterflies migrating to mexico for the winter

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