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A LITTLE SOMETHING WORTH KNOWING

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ScienceOne small ahaBiology concept

These animals lack a backbone and make up most known animal species.

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Your new ahaInvertebrates

Invertebrates: Animals that lack a backbone. Source: Invertebrate ↗

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More from From Cells to Species

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  1. 23Plants use this process to convert light into chemical energy, releasing oxygen.RECALL
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    Photosynthesis converts sunlight into chemical energy in plants and releases oxygen as a byproduct.

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  2. 24These amino-acid chains include structural molecules such as the keratin in hair and nails.RECALL
    Proteins

    Proteins are built from chains of amino acids and include structural molecules like keratin in hair and nails.

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  3. 25These biological catalysts speed up reactions such as food digestion.RECALL
    Enzymes

    Enzymes act as biological catalysts, speeding up reactions such as the digestion of food.

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