How can you identify a fibrous root system

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.

As a small change in a person's dna can cause a genetic disorder

Plz ! what does it mean for an allele to be dominant?