8.SCI.13.C

Describe how variations of traits within a population lead to structural, behavioral, and physiological adaptations that influence the likelihood of survival and reproductive success of a species over generations.

Grade 8 · Texas Essential Knowledge and Skills (TEKS) · TEKS 2022

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Vocabulary
variations of traitspopulationstructural adaptationsbehavioral adaptationsphysiological adaptationslikelihood of survivalreproductive successspeciesgenerations
Skills
  • describe (how variations of traits within a population lead to adaptations) #dok2
  • explain (the relationship between trait variation and structural, behavioral, and physiological adaptations) #dok2
  • analyze (how adaptations influence likelihood of survival and reproductive success over generations) #dok3
  • connect (trait variation to evolutionary changes in species) #dok3
Learning Targets
  • I can describe how variations of traits exist within a population. #dok1
  • I can identify structural, behavioral, and physiological adaptations in a species. #dok1
  • I can explain how trait variations lead to adaptations that help a species survive. #dok2
  • I can explain how different types of adaptations influence an organism’s likelihood of survival and reproduction. #dok2
  • I can analyze how variations and adaptations in a population affect reproductive success over generations. #dok3
  • I can connect specific examples of trait variation to patterns of survival in changing environments. #dok3
Big Ideas
  • Variations in traits within a population can lead to adaptations that enhance survival and reproduction.
  • Structural, behavioral, and physiological adaptations developed from trait variations influence a species' success over generations.
Essential Questions
  • How do variations in traits arise within a population?
  • What roles do structural, behavioral, and physiological adaptations play in the survival of species?
  • In what ways do adaptations increase an organism’s chances of survival and reproductive success?
  • How do adaptations become more common in a population over multiple generations?
  • How does trait variation within a population contribute to evolutionary change?