How do scientists mainly use Molecular Biology to provide evidence of evolutionary relationships between two groups of organisms? By comparing the base sequences in their genes

By comparing the phospholipids in their cell membranes

By comparing the ratios of elements in their biomolecules

By comparing the structures of their carbohydrate molecules

stratosphere: as the altitude increases, the air temperature increases. the stratosphere has a layer of ozone, called the ozone layer. this layer absorbs most of the ultraviolet radiation from sunlight. this results in the stratosphere being warmer.

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion

the answer is :