HS-LS2-6

Evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem.

More Stories in HS-LS2-6

  1. Plants

    For some trees, acting as lightning rods helps them survive

    Being struck by lightning is usually bad. But for one tropical tree, a mighty zap can kill rivals and parasitic vines.

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  2. As the climate warms, polar bears are facing more germs

    Polar bears have been exposed to more viruses, bacteria and parasites in recent decades, a new study shows. These may come from their diet.

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  3. Plants

    Insect-eating plants digest faster with a fungal friend

    Insects stuck in sundews’ sticky goo break down faster when the plants host an enzyme-making fungus.

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  4. Oceans

    Underwater mountains in the Pacific Ocean may be home to 20 new species

    A recent expedition to undersea mountain ranges off the coast of Chile revealed a new seamount and a rich world of deep-sea biodiversity.

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  5. Plants

    Many flowers and ferns lure in ants as bodyguards

    With an offer of a nectar meal, ferns and flowering plants have been bribing ants to fend off predatory insects — since before the rise of T. rex.

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  6. Animals

    Hibernating bumblebee queens can survive days of watery submersion

    Hibernating queen bumblebees survived accidental submersion, leading researchers to discover their surprising resilience to flooding.

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  7. Oceans

    Shading corals during midday heat can limit bleaching

    Shading coral reefs during the sunniest part of the day may help corals survive marine heat waves.

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  8. Climate

    Some tree leaves are finding it too hot for photosynthesis

    Earth’s ongoing fever threatens to push entire forests toward this heat limit — and possible death.

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  9. Earth

    Analyze This: Tropical forests have gotten patchier

    Although many of the world's forests have gotten less fragmented since 2000, tropical forests have gotten more chopped up, putting animals at risk.

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