A spinning turbine can generate electricity only in the form of a. Current.

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.

The number of living organisms in a particular area is

How does a gymnosperm prevent itself from pollinating the same tree