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A LITTLE SOMETHING WORTH KNOWING

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ScienceOne small ahaBiology concept

This broad term describes a close, long-term relationship between organisms of different species.

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Your new ahaSymbiosis

Symbiosis: Close, long-term relationship between two different species. Source: Symbiosis ↗

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More from From Cells to Species

A few more worth knowing.

  1. 19The death of a species' last member completes this process.RECALL
    Extinction

    Extinction occurs once the very last member of a species dies out, as happened to the dodo bird.

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  2. 20His Beagle voyage and Galápagos observations helped shape his account of natural selection.RECALL
    Charles Darwin

    Charles Darwin developed his theory of natural selection partly from observations made on the Galápagos Islands.

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  3. 21This inherited feature has been shaped by natural selection to suit an organism's environment.RECALL
    Adaptation

    An adaptation is a trait shaped by natural selection to fit an organism to its environment, like a polar bear's thick fur.

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