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. Brain

    VR can train the human brain to treat wings like real limbs

    Virtual "flying" coaching, based on bird flight, took only a week. Afterward, participants’ brains seemed to view VR wings almost like true limbs.

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  2. Animals

    Like living mood rings, these bees change color when it turns humid

    Humidity makes North American sweat bees change color. This trait could be widespread among shiny insects, some biologists now suspect.

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  3. Brain

    Imagination is not just replaying what we’ve seen and heard

    New brain scans are helping sort out how our brains process imagined thoughts versus real sensations.

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  4. Brain

    Scientists Say: Synesthesia

    This is a trait in which one kind of sensory input, such as sound, can trigger another sense, such as sight.

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  5. Humans

    Some people use echolocation to get around. Here’s how it works

    As expert echolocators make multiple clicking sounds, their brains process the echoes to help them perceive their surroundings.

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  6. Health & Medicine

    Positive thinking could help boost your immune system

    With real-time feedback, people can learn to turn on a part of the brain that helps rev up the immune system, new data show.

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  7. Life

    Scientists Say: Spore

    Patience is a virtue of these crafty, resilient little reproductive cells. Some bacterial spores have grown after lying dormant for a millennium.

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  8. Animals

    Physics explains how snakes climb and stand without limbs

    Tree snakes can raise their body into the air without falling over. They keep their balance by bending their bodies close to their base.

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  9. Health & Medicine

    How pitchers rest between innings could save their arms — and stats

    Focusing on muscle recovery during games could help keep pitch speeds high and injury risk low, one ISEF finalist finds.

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