The ideal mechanical advantage of a wheel and axle is what number?

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.

Regarding most of the narrator’s story, which word best describes the tone?

Were you able to observe the nucleolus in any of the cells if so which ones