A purple flowered pea plant was crossed to a white flowered pea plant and all of the F1 progeny had purple flowers. When the F1 plants were crossed to each other, a ratio of 3 purple: 1 white flowered plants was observed in the F2 progeny. If one of the F2 purple flowered plants is crossed to a white flowered plant, what is the probability that one of the progeny plants will have white flowers

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Interacting group of various species in a common location. for example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.