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. Microbes

    Check out the communities of bacteria living on your tongue

    Bacteria scraped off the tongue offer a window into how the microbes structure their communities.

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  2. Science & Society

    COVID-19: When will it be safe to go out again?

    No one yet knows when social distancing can end. Experts explain we need 'herd immunity,' which won't be easy and may come at a horrific cost.

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  3. Health & Medicine

    Your most urgent questions about the new coronavirus

    Researchers have more questions than answers right now about 2019-nCoV. They’re racing to understand and stop the coronavirus and the health crisis it poses.

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  4. Health & Medicine

    The many challenges of corralling a coronavirus outbreak

    The Chinese government has quarantined millions of people in hopes of limiting spread of a new coronavirus. But no one yet knows how much this will help.

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  5. Ecosystems

    Newfound desert soil community lives on sips of fog

    Lichens and other fungi and algae team up to form a 'grit-crust' on the parched soil of Chile’s Atacama Desert. Those species slake their thirst with moisture from coastal fog.

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  6. Environment

    Australian fires have imperiled up to 100 species

    As massive wildfires consume huge swaths of Australia’s bush, untold species — many of them found nowhere else — are now threatened with extinction.

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  7. Life

    Why some whales become giants and others are only big

    Being big helps whales access more food. But just how big a whale can get is influenced by whether it hunts or filter-feeds.

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