Your immune systems main function is? A. Takes in oxygen and removes carbon dioxide and water

B. Allows organisms to reproduce preventing their species from becoming extinct

C. Fights off foreign invader

D. Transport materials to and from cells

This rapid change in species that rarely leaves behind fossil evidence is referred to as

Climate like that in the sahara desert have the fastest rates of weathering

Transposon can cause mutations in genes at or near the site of transposon insertion. it is possible for these elements to transpose away from their original site, causing a reversion of the mutant phenotype. in some cases, however, even more severe phenotypes appear when these elements excise from this site, due to events at or near the mutant allele. what might be happening to the transposon or the nearby gene to create more severe mutations?