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Showing 1-13 of 13 Resources
  • Salt Stress Impacts Photosynthesis in Algae

    Salt Stress Impacts Photosynthesis in Algae

    Data Points

    Scientists investigated how salt affects the photosynthetic electron transport chain in freshwater green alga.

  • Seed Dispersal in Tropical Forests

    Seed Dispersal in Tropical Forests

    Lessons

    In this activity, students use data from published studies to understand patterns of seed dispersal and apply these ideas to the design of a conservation area.

  • Stalking the Genetic Basis of a Trait

    Stalking the Genetic Basis of a Trait

    Lessons

    In this activity students analyze data on the expression of the tb1 gene and use it to formulate an explanation as to how a specific difference in the corn version of the gene explains the phenotype of less branching.

  • Seed Dispersal and Habitat Fragmentation

    Seed Dispersal and Habitat Fragmentation

    Scientists at Work

    (8 min 3 sec) Watch researchers follow brown spider monkeys in a tropical forest of Colombia to determine which plant seeds they are dispersing. Seed dispersers are critical to the forest’s ability to grow and regenerate. 

  • Root Movement

    Root Movement

    Phenomenal Images

    Students explore photos of plant cells as phenomena to explore the response of plant cells to stimuli.

  • Dating Corn Domestication Using Carbon Isotopes

    Dating Corn Domestication Using Carbon Isotopes

    Data Points

    To study the change in diet as human populations changed lifestyles from hunter-gatherers to agriculturalists, scientists measured carbon isotopes in the collagen tissues of human skeletons from North America.

  • Selective Breeding in Maize

    Selective Breeding in Maize

    Data Points

    Researchers performed the longest-running, controlled artificial selection experiment to study whether they could increase the protein concentration of maize (corn) by selective breeding.

  • Written in Chalk

    Written in Chalk

    Phenomenal Images

    Students explore photos of chalk formations and coccolithophore algae as phenomena to explore the interplay between biological and geological processes.

  • The Teosinte Hypothesis

    The Teosinte Hypothesis

    Lessons

    In this activity, students further explore the short film Popped Secret: The Mysterious Origin of Corn, by working through the mathematical concepts behind George Beadle’s claim that teosinte is the wild ancestor of maize.

  • Activity for Popped Secret: The Mysterious Origin of Corn

    Activity for Popped Secret: The Mysterious Origin of Corn

    Film Activities

    This activity explores how scientists determined how and where corn was domesticated, as discussed in the short film Popped Secret: The Mysterious Origin of Corn.

  • Modeling Ecosystem Effects of Termite Mound Patterns

    Modeling Ecosystem Effects of Termite Mound Patterns

    Data Points

    Dr. Corina Tarnita and colleagues studied how a pattern of termite mounds across a dryland ecosystem enhances resilience against desertification.

  • Popped Secret: The Mysterious Origin of Corn

    Popped Secret: The Mysterious Origin of Corn

    Short Films

    (17 min 51 sec) This film explores the genetic and archaeological evidence that suggest that corn is the result of the domestication of a wild Mexican grass called teosinte.

  • Weighing the Evidence for a Mass Extinction—On Land

    Weighing the Evidence for a Mass Extinction—On Land

    Lessons

    A lesson in which students analyze graphs and data on pollen grains and fern spores to form a picture of the living landscape before and after the K-T mass extinction.

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