HS-LS2-2

Use mathematical representations to support and revise explanations based on evidence about factors affecting biodiversity and populations in ecosystems of different scales.

  1. Animals

    Biowarfare saves bats from killer fungus

    Good news for bats. Those infected with white-nose syndrome may be cured by a brief exposure to fumes from therapeutic bacteria.

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  2. Plants

    Using plants to solve environmental problems

    Problems in their communities suggested good research projects to three teens. Each wanted to tackle a different issue, from pollution to world hunger. To learn more about these issues, they turned to their local ponds, wetlands and gardens.

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  3. Microbes

    The bugs within us

    Hordes of bacteria live inside people and other animals. This ‘microbiome’ can affect the development of the blood-brain barrier, food choices — even mating.

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  4. Animals

    Pesticides offer bees a risky allure

    Honeybees and bumblebees sometimes cannot taste or avoid pesticides called neonicotinoids. And that may expose some of these important pollinators to harm.

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  5. Animals

    Scientists feed bed bugs (on purpose)

    To study bed bugs in the lab, scientists had to first learn how to keep the blood-thirsty critters well fed. And that proved easier said than done.

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  6. Animals

    What’s the buzz? A new mosquito lure

    Broadcasting a fake buzz can lure male Aedes aegypti mosquitoes away from females. That could reduce populations of these annoying — and disease-causing — insects, reports a teen at the 2015 Intel ISEF competition.

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  7. Health & Medicine

    Teen researcher eyes peripheral vision

    Our peripheral vision helps us work and play. A student scientist studied how the distance between our eyes affects what we can see on the outer edges of our field of view.

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  8. Health & Medicine

    Do mosquitoes love you? Blame your parents

    By studying twins, scientists found that how attractive we are to mosquitoes depends partly on our genes. That could lead to better bug repellents.

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  9. Animals

    What’s for dinner? Mom.

    Female spiders of one species make the ultimate sacrifice when raising their young: The mothers feed themselves to their children.

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  10. Environment

    Deep-sea fish show signs of exposure to pollution

    A new study suggests deep-water fish may have health problems linked to human pollution. Eating these fish may expose diners to the same pollution.

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  11. Agriculture

    Ditching farm pollution — literally

    An Indiana project shows how fighting fertilizer runoff can save farmers money, protect wild habitats and prevent harmful algae blooms.

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  12. Animals

    News Brief: Rabbit-hunting pythons are altering Everglades

    Rabbits may breed rapidly, but not fast enough to compensate for the huge summer appetites of huge pythons roaming Florida’s Everglades.

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