Benchmark 5F
The Living Environment: Evolution of Life
Grades 9-12, page 125

The basic idea of biological evolution is that the earth's present-day species developed from earlier, distinctly different species.
 

NSES Content Standard C
Life Science: Biological evolution
Grades 9-12, page 185
Species evolve over time. Evolution is the consequence of the interactions of (1) the potential for a species to increase its numbers, (2) the genetic variability of offspring due to mutation and recombination of genes, (3) a finite supply of the resources required for life, and (4) the ensuing selection by the environment of those offspring better able to survive and leave offspring.

NSES Content Standard C
Life Science: Biological evolution
Grades 9-12, page 185
The millions of different species of plants, animals, and microorganisms that live on earth today are related by descent from common ancestors.
See also the general discussion in Unifying Concepts and Processes: Evolution and equilibrium.