HS-LS1-2

Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.

More Stories in HS-LS1-2

  1. Planets

    Research on exoplanets took top award at 2023 Regeneron ISEF

    Six young researchers took home the top awards, each valued at a minimum of $50,000. Hundreds more shared nearly $9 million in prizes at international event.

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  2. Animals

    These beetles ‘drink’ water using their butts

    Red flour beetles can survive in very dry environments. New research shows how the beetles can suck water from the air using their rear ends.

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  3. Animals

    Sleeping glass frogs go into stealth mode by hiding red blood cells

    Glass frogs snoozing among leaves blend in by hiding almost all their red blood cells in their liver.

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  4. Health & Medicine

    How to be heat-safe when playing sports

    Protecting young athletes from overheating is getting more important as climate change turns up the temperature.

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  5. These lemurs take nose-picking to a new level

    A nose-picking aye-aye’s spindly middle digit probably pokes all the way into the back of the throat, CT scans show.

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  6. Health & Medicine

    Scientists Say: Kidney

    The kidneys remove waste and excess water from the blood, forming urine.

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  7. Health & Medicine

    New brain scans may show if a concussion has not yet healed

    Concussions change certain brain waves, and delta waves may be the best signs of when teens can return to competitive sports.

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  8. Materials Science

    Analyze This: Algae behind blue-glowing waves light up a new device

    Some algae glow blue when they experience forces. Held in transparent plastic, they now make devices light up in response to gentle pushes and tugs.

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  9. Animals

    Scientists Say: Metamorphosis

    Animals that go through metamorphosis look very different as adults than they did as kids.

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