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Lesson summary for:
Angling for evolutionary answers: The work of David O. Conover

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Overview:
Human activity has certainly affected our physical environment - but it is also changing the course of evolution. This research profile follows scientist David O. Conover as he investigates the impact of our fishing practices on fish evolution and discovers what happened to the big ones that got away.

Author/Source:
UC Museum of Paleontology

Grade level:
9-12

Time:
30 minutes

Teaching tips:
This research profile includes discussion and essay questions that can be assigned to students. Get tips for using research profiles in your classroom.

Concepts:
Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details.

  • Artificial selection provides a model for natural selection.

  • Evolution results from selection acting upon genetic variation within a population. (LS4.B)

  • Depending on environmental conditions, inherited characteristics may be advantageous, neutral, or detrimental.

  • Natural selection acts on the variation that exists in a population. (LS4.B, LS4.C)

  • Natural selection acts on phenotype as an expression of genotype.

  • Populations, not individuals, evolve.

  • A hallmark of science is exposing ideas to testing. (P3, P4, P6, P7)

  • Scientists test their ideas using multiple lines of evidence. (P6, NOS2)

  • The real process of science is complex, iterative, and can take many different paths.

  • Scientists use multiple research methods (experiments, observational research, comparative research, and modeling) to collect data. (P2, P3, P4, NOS1)

  • Science is a human endeavor. (NOS7)

  • As with other scientific disciplines, evolutionary biology has applications that factor into everyday life.

  • There is variation within a population. (LS3.B)

Teacher background:

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