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Unit: Principles of Evolution

Aligned to Science TEKS with clear Learning Outcomes, this unit covers instructional content including Early Ideas of Evolution, Charles Darwin, and Evidence of evolution.


  • 3F  Research and describe the history of biology and contributions of scientists
  • 7A  Analyze and evaluate how evidence of common ancestry among groups is provided by the fossil record, biogeography, and homologies, including anatomical, molecular, and developmental
  • 7B  Analyze and evaluate scientific explanations concerning any data of sudden appearance, stasis, and sequential nature of groups in the fossil record
  • 7D  Analyze and evaluate how the elements of natural selection, including inherited variation, the potential of a population to produce more offspring than can survive, and a finite supply of environmental resources result in differential reproductive success
  • 7E  Analyze and evaluate the relationship of natural selection to adaptation and to the development of diversity in and among species
  • 12B  Compare variations and adaptations of organisms in different ecosystems