What arctic animals will climate change affect? How will it affect these animals?

According to the theory of punctuated equilibrium, at what rate does speciation occur? species change depending on the rate of natural selection. after periods of stasis, new species evolve relatively rapidly. species change slowly and eventually form new species. some species change quickly and others change slowly to balance the overall rate.

Which experiment would most likely contain experimental bias

In what for do plants utilize nitrogen? why do they need nitrogen?