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. Health & Medicine

    Scientists link Zika to nerve disease

    The Zika virus is spreading in the Americas. There has also been an uptick in cases of Guillain-Barré syndrome. Scientists think the two are linked.

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  2. Animals

    Parasites give brine shrimp super powers

    When infected with parasitic worms, brine shrimp survive better in waters laced with toxic arsenic, a new study finds.

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  3. Tech

    Ouchless measles vaccine could save lives

    A new ‘ouchless’ vaccine patch that uses dissolving microneedles could make efforts to vaccinate against measles more practical.

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  4. Health & Medicine

    The truth about zits

    A common bacterium called P. acnes usually helps keep the skin healthy. But under some conditions, and especially during puberty, it can trigger painful, embarrassing outbreaks of unsightly pimples.

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  5. Health & Medicine

    Behavior of genes could identify type of infection

    The behavior of hundreds of genes can identify a viral infection, a new study finds. That could help doctors determine treatment for a sick patient.

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  6. Environment

    Wildlife forensics turns to eDNA

    Environmental DNA, or eDNA, tells biologists what species have been around — even when they’re out of sight or have temporarily moved on.

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  7. Microbes

    Slime cities

    Biofilms are like tiny cities of bacteria — some harmless, others destructive. Scientists are learning how to keep these microscopic metropolises under control.

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  8. Environment

    Humans are ‘superpredators’

    A new study compares the hunting habits of wild animals and humans. People, it turns out, are unlike any other predator on Earth.

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  9. Health & Medicine

    Cool Jobs: Finding foods for the future

    What's for dinner... tomorrow? Scientists are developing new foods to meet the demands of the growing population in a changing world.

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  10. Animals

    Weed killers may go from plant to pooch

    Dogs love to roll around in the grass. But if there is weed killer around, it could end up on — and in — our furry pals.

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  11. Environment

    Insecticide can change a spider’s personality

    A chemical meant to kill moths affects the behavior of some spiders. It alters the spiders’ ability to capture prey — including those moths.

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  12. Agriculture

    Organic food starts to prove its worth

    Organic food often comes with a higher price. But research is showing that food grown this way can be better for the environment — and possibly for us.

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