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Unit: Populations

Aligned to Science TEKS with clear Learning Outcomes, this unit covers instructional content including Population Growth, Characteristics of Populations, and Limits to Growth.


  • 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
  • 11B  Investigate and analyze how organisms, populations, and communities respond to external factors
  • 12A  Interpret relationships, including predation, parasitism, commensalism, mutualism, and competition among organisms
  • 12D  Recognize that long-term survival of species is dependent on changing resource bases that are limited
  • 12F  Describe how environmental change can impact ecosystem stability

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Instructional Resources