NSES Content Standard C  Life Science: Biological evolution Grades 9-12, page 185 Natural selection and its evolutionary consequences provide a scientific explanation for the fossil record of ancient life forms, as well as for the striking molecular similarities observed among the diverse species of living organisms.

 
Benchmark 5F The Living Environment: Evolution of Life
Grades 9-12, page 125
Molecular evidence substantiates the anatomical evidence for evolution and provides additional detail about the sequence in which various lines of descent branched off from one another.

Benchmark 5F The Living Environment: Evolution of Life
Grades 9-12, page 125
The theory of natural selection provides a scientific explanation for the history of life on earth as depicted in the fossil record and in the similarities evident within the diversity of existing organisms.