Why is a food web a better representation of relationships within an ecosystem than a food chain? a. a food web shows that most organisms consume and are consumed by more than one organism. b. a food chain shows that most organisms consume and are consumed by more than one organism. c. a food chain shows only a single pathway of energy. d. a food web shows a single pathway of energy flow through the ecosystem.

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?

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

Which describes the changes in the earths motion?