MS-LS4-4

Construct an explanation based on evidence that describes how genetic variations of traits in a population increase some individuals' probability of surviving and reproducing in a specific environment.

More Stories in MS-LS4-4

  1. Life

    Scientists Say: Adaptation

    This word refers to a feature of a living thing that helps it better survive in its environment — or the process of that feature evolving in a population.

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  2. Fossils

    ‘Penis worms’ could have been the original hermits

    These soft-bodied critters lived in abandoned shells about 500 million years ago, a new study suggests.

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  3. Animals

    Will the woolly mammoth return?

    Scientists are using genetic engineering and cloning to try to bring back extinct species or save endangered ones. Here’s how and why.

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  4. Animals

    Cloning boosts endangered black-footed ferrets

    A cloned ferret named Elizabeth Ann brings genetic diversity to a species that nearly went extinct in the 1980s.

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  5. Fossils

    Baby pterosaurs may have been able to fly right after hatching

    A bone crucial for lift-off was stronger in hatchling pterosaurs than in adults. The baby reptiles also had shorter, broader wings than grown-ups.

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  6. Animals

    Tiny animals survive 24,000 years in suspended animation

    Tiny bdelloid rotifers awake from a 24,000-year slumber when freed from the Arctic permafrost.

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  7. Animals

    Science and Indigenous history team up to help spirit bears

    When scientists and Indigenous people work together, their efforts can benefit bears and people.

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  8. Health & Medicine

    Bringing COVID-19 vaccines to much of world is hard

    The price of not vaccinating nearly everyone across the world could be a longer pandemic and more troubling variants of the new coronavirus.

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  9. Humans

    By not including everyone, genome science has blind spots

    Little diversity in genetic databases makes precision medicine hard for many. One historian proposes a solution, but some scientists doubt it’ll work.

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