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Echinoderms and Chordates: Introduction to the phylum and fishes ...

Echinoderms and Chordates: Introduction to the phylum and fishes ...

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Figure 34.1: The o<strong>the</strong>r large<br />

Deuteros<strong>to</strong>me <strong>phylum</strong>, <strong>the</strong> Chordata<br />

Animals that are not<br />

vertebrates are collectively<br />

known as invertebrates. Over<br />

95% of <strong>the</strong> known animal species<br />

are invertebrates, including <strong>the</strong><br />

echinoderms, hemichordates,<br />

<strong>and</strong> xenoturbellids.<br />

Pro<strong>to</strong>s<strong>to</strong>mes<br />

Coelom<br />

Triploblasty<br />

Bilateral symmetry<br />

Deuteros<strong>to</strong>me<br />

development<br />

Deuteros<strong>to</strong>mes<br />

This <strong>phylum</strong> includes<br />

vertebrates: sharks,<br />

bony <strong>fishes</strong>, amphibians,<br />

reptiles (including birds),<br />

<strong>and</strong> mammals

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