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. Life

    Here’s how butterfly wings keep cool in the sun

    Butterfly wings sport structures that let living tissues release more heat than the rest of the wing.

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  2. Animals

    Ouch! Jellyfish snot can hurt people who never touch the animal

    A goo shed by at least one species of upside-down jellyfish contains stinging cells. They can cause pain even to creatures that never touch the jelly.

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  3. Health & Medicine

    Excess weight alters results of blood tests in kids and teens

    Carrying extra weight could affect many routine blood tests in kids, new data show. Knowing this might help doctors better interpret lab results.

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  4. Health & Medicine

    Explainer: What are allergies?

    Sometimes the body’s immune system works too well, like a smoke alarm that blares every time you cook pizza. The results can range from uncomfortable to potentially life-threatening.

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  5. Health & Medicine

    Vaping emerges as possible trigger for seizures

    Anonymous accounts have been filed with the FDA reporting seizures in teens after vaping. These were linked most often to JUUL and related pods.

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  6. Brain

    Sleep may jumpstart the brain’s power washing system

    Waves of fluid wash into the human brain during sleep. That’s good. They just may help clean out toxic proteins.

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  7. Animals

    Blood vessels in their heads kept big dinos from overheating

    Giant dinosaurs evolved several ways to cool their blood and avoid heatstroke.

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