HS-LS2-4

Use a mathematical representation to support claims for the cycling of matter and flow of energy among organisms in an ecosystem.

More Stories in HS-LS2-4

  1. Ecosystems

    Secret forest fungi partner with plants — and help the climate

    Forest fungi are far more than mere mushrooms. They explore. They move nutrients and messages between plants. They can even help fight climate change.

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  2. Animals

    Meat-eating bees have something in common with vultures

    Flesh-eating bees have acid-producing gut bacteria, much as vultures do. It lets them safely snack on rotting meat.

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  3. Animals

    Baleen whales eat — and poop — a lot more than we thought

    The amount of food that some whales eat and then poop out suggests these animals have a powerful influence over ocean ecosystems.

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  4. Plants

    Let’s learn about meat-eating plants

    Carnivorous plants use a variety of strategies to lure in and capture their prey, from sticky traps to jawlike leaves.

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  5. Plants

    Well-known wildflower turns out to be a secret meat-eater

    Look closely at Triantha occidentalis, and you’ll see gluey hairs — and a trail of insect corpses on its stem.

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  6. Fossils

    Sudden shark die-off 19 million years ago eliminated most species

    New fossil evidence shows 90 percent of sharks died in the mysterious event.

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  7. Microbes

    Some microbial hitchhikers may weaken body’s attack on COVID-19

    New research identifies an altered mix of microbes in the body — ones commonly seen in people with poor diets — that may worsen coronavirus disease.

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  8. Agriculture

    Healthy soils are life-giving black gold

    Scientists explain why everyone needs to value the soils beneath our feet — and why we should not view them as dirt.

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  9. Agriculture

    Soil (and its inhabitants) by the numbers

    Teeming with life, soils have more going on than most of us realize.

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