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. Health & Medicine

    Scientists Say: Symptom

    A runny nose, fever or feeling of fatigue might clue your doctor in to the right diagnosis.

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  2. Animals

    As toddlers, chimps are major risk takers

    Human kiddos are generally too closely supervised to be able to monkey around as much as young chimps. Instead, older kids — teens — are usually the bigger risk takers.

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  3. Plants

    Scientists Say: Pollination

    Plants call upon wind, water or helpful animals to carry out this crucial step of their life cycle.

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  4. Humans

    Using physics can help athletes avoid sports injuries 

    Jessica Talmage uses physics to help understand how the body moves. Her findings help athletes avoid sports injuries and improve their performance.

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  5. Chemistry

    Explainer: What is chirality?

    Chiral molecules are mirror images of each other. They might not seem all that different — but can have drastically different effects in medicine, materials and more.

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  6. Brain

    Scientists Say: Hallucination

    Humans are not the only ones who can hallucinate. When a chatbot confidently generates a plausible but incorrect response, this error is called a hallucination.

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  7. Psychology

    Everyone experiences malicious joy now and then

    Called schadenfreude, feeling happy when we see someone else’s pain is typically harmless. But unchecked, it can have big consequences.

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  8. Artificial Intelligence

    Chatbots may make learning feel easy — but it’s shallow

    People who use search engines gain deeper knowledge and care more about what they learn than those who rely on AI chatbots, a new study finds.

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  9. Animals

    Is it possible to be invisible?

    Fiction is full of characters with the power to vanish. But some animals have real-life ways to become nearly invisible.

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