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. 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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  2. Health & Medicine

    Ultrasound might become a new way to manage diabetes

    Ultrasound turns on production of the hormone insulin in mice. Someday, it might help maintain healthy blood-sugar levels in people who were recently diagnosed with diabetes.

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  3. Health & Medicine

    Explainer: The benefits of phlegm, mucus and snot

    There are many types of mucus in the body. They might seem gross, but these gloppy goos are the first line of defense against infection.

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  4. Health & Medicine

    Explainer: What is the vagus?

    The vagus nerve runs from the brain all through the body. It controls many basic functions, including how fast the heart beats.

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  5. Health & Medicine

    Scientists discover how norovirus hijacks the gut

    Noroviruses make people vomit, but scientists didn’t actually know why. It now turns out that those viruses cause their misery by attacking special “tuft” cells in the gut.

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  6. Health & Medicine

    Owww! World’s hottest chili leads to days of severe headaches

    A man ate one of the hottest peppers in the world. About a minute later, his head began pounding. See why they didn’t permanently disappear for days!

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  7. Health & Medicine

    Science-fair finding allows girl to sample a croissant

    Some supplements claim they can help people with celiac disease, who cannot digest gluten. But do the pills work? One teen used science to find out.

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