Many volcanoes breaking through the earths crust. The plate wouldn’t have room to move with the conduction of lava underneath. It would be like bending your knee with a big scab. It would crack and flex up or down. In short, it wouldn’t work out very well
A. community and abiotic environment
There are two main reasons. First, there are introns and exons existed in eukaryotes. Introns do not contain the genetic information but are in large amount in chromosome. So, if the mutation occurs in the introns, it will be recessive. Second, one amino acid will corresponding to several base sequences. For example, UUU and UUC all represent Phe. This is called degeneracy. So if the mutation did not change the amino acid, it is also recessive.
