Which best describes the relationship of the embryo and the fetus

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.

What re the two main phrases of the cell cycle.

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.