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A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaBiology concept

This change in a DNA sequence can have neutral, harmful, or beneficial effects.

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Your new ahaMutation

A mutation changes a DNA sequence. Source: Mutation ↗

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More from From Cells to Species

A few more worth knowing.

  1. 11This regulatory process maintains stable internal conditions, such as body temperature.RECALL
    Homeostasis

    Homeostasis lets an organism maintain stable internal conditions, such as the body regulating its own temperature.

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  2. 12These single-celled prokaryotes occur nearly everywhere and include many familiar microbes.RECALL
    Bacteria

    Bacteria are single-celled organisms found almost everywhere on Earth and rank among the earliest forms of life.

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  3. 13These infectious agents require host cells to reproduce.RECALL
    Viruses

    Viruses cannot reproduce alone and must hijack a host organism's cells, as the common cold virus does.

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