Can some variations be subtle? Can some be extrem

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.

How are the tortoises that darwin observed on the galápagos islands similar to the anoles that losos studied

Which of the following typically characterizes a tropical rainforests