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Standard Area - MST:
  • Standard - MST4: Students will understand and apply scientific concepts, principles, and theories pertaining to the physical setting and living environment and recognize the historical development of ideas in science.
  • Key Idea Code - MST4.LE:
  • Key Idea - MST4.LE3: Individual organisms and species change over time.
  • Academic Level - MST4.I.LE3:
  • Performance Indicator - MST4.I.LE3A: Students describe sources of variation in organisms and their structures and relate the variations to survival.
  • Major Understandings - 3.1a : The processes of sexual reproduction and mutation have given rise to a variety of traits within a species.

  • Major Understandings - 3.1b : Changes in environmental conditions can affect the survival of individual organisms with a particular trait. Small differences between parents and offspring can accumulate in successive generations so that descendants are very different from their ancestors. Individual organisms with certain traits are more likely to survive and have offspring than individuals without those traits.

  • Major Understandings - 3.1c : Human activities such as selective breeding and advances in genetic engineering may affect the variations of species.
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