HS-LS2-2

Use mathematical representations to support and revise explanations based on evidence about factors affecting biodiversity and populations in ecosystems of different scales.

More Stories in HS-LS2-2

  1. Animals

    Sleepy mosquitoes prefer dozing over dining

    Mosquitoes repeatedly shaken to prevent slumber lagged behind well-rested ones when offered a leg to feed on.

    By
  2. Animals

    Some Greenland polar bears are surviving with very little sea ice

    The ‘glacial mélange’ on which they’ve come to rely — a mix of ice, snow and slush — could be a temporary refuge for some polar bears.

    By
  3. Animals

    Palm-size marsupials may face extinction from wild ‘house’ cats

    After surviving Australian bushfires, the Kangaroo Island dunnart is losing ground as it's targeted by hungry predators.

    By
  4. Space

    The first plants ever grown in moon dirt have sprouted

    This tiny garden shows farming on the moon may be difficult, although not impossible.

    By
  5. Animals

    Let’s learn about amphibians

    Amphibians are named after the Greek word for “double life” because many transform from water dwellers to landlubbers as they grow up.

    By
  6. Oceans

    Night lights make even the seas bright

    Light from coastal cities and offshore development may shine deep enough to disrupt tiny critters living dozens of meters (yards) below the surface.

    By
  7. Animals

    Infected caterpillars become zombies that climb to their deaths

    By tampering with genes involved in vision, a virus can send caterpillars on a doomed quest for sunlight.

    By
  8. Environment

    Ponds made to control floods can spew climate-warming gases, study finds

    Younger stormwater ponds can release more carbon in gases than they absorb, a study finds. That could aggravate global warming.

    By
  9. Microbes

    Kitchen sponges are bacteria’s dream home

    Sponges are favorite spots for bacteria, partly because of the mixed-housing environment that the cleaner-uppers offer microbes.

    By