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Home → Teach Evolution → Lessons and Teaching Tools → Teaching Resources Database → Semejanzas y diferencias: Comprendamos las homologías y evolución convergente (nivel bachillerato)

Semejanzas y diferencias: Comprendamos las homologías y evolución convergente (nivel bachillerato)

Grade Level(s):

  • 9-12
  • General
  • Student

Source:

  • UC Museum of Paleontology

Resource type:

  • Online activity or lab

Time: 30 minutes

Overview

Esta investigación interactiva explica qué son las homologías, cómo reconocerlas y cómo es que evolucionan.

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  • [History of life: Grades 9-12] Biological evolution accounts for diversity over long periods of time. (LS4.A, LS4.D)
  • [History of life: Grades 9-12] Through billions of years of evolution, life forms have continued to diversify in a branching pattern, from single-celled ancestors to the diversity of life on Earth today.
  • [Evidence of evolution: Grades 9-12] An organism's features reflect its evolutionary history.
  • [Evidence of evolution: Grades 9-12] There is a fit between organisms and their environments, though not always a perfect fit. (LS4.C)
  • [Evidence of evolution: Grades 9-12] Features sometimes acquire new functions through natural selection
  • [Evidence of evolution: Grades 9-12] Similarities among existing organisms provide evidence for evolution. (LS4.A)
  • [Evidence of evolution: Grades 9-12] Anatomical similarities of living things reflect common ancestry. (LS4.A)
  • [Evidence of evolution: Grades 9-12] Not all similar traits are homologous; some are the result of convergent evolution.
  • [Mechanisms of evolution: Grades 9-12] Complex structures may be produced incrementally by the accumulation of smaller useful mutations.
  • [Mechanisms of evolution: Grades 9-12] Traits that confer an advantage may persist in the population and are called adaptations. (LS4.B, LS4.C)
  • [Studying evolution: Grades 9-12] Scientists use the similarity of DNA nucleotide sequences to infer the relatedness of taxa. (LS4.A)
  • [Studying evolution: Grades 9-12] Scientists use anatomical evidence to infer the relatedness of taxa. (LS4.A)
  • [Studying evolution: Grades 9-12] Scientists use developmental evidence to infer the relatedness of taxa. (LS4.A)
  • Disciplinary Core Idea LS4.A: Evidence of Common Ancestry and Diversity
  • Disciplinary Core Idea LS4.B: Natural Selection
  • Disciplinary Core Idea LS4.C: Adaptation
  • Disciplinary Core Idea LS4.D: Biodiversity and Humans
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