Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
hemichordate .
Etymologies
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Examples
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The chordates are things with a central nervous system running down the length of the body the hemichordates are wormy things which are a sister group to the echinoderms though have some chordate-like properties including a munty degenerate version of a simple nerve cord which might be an evo precursor of same.
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The deuterostomes are made up of the chordates, hemichordates and the echinoderms.
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They focus on the fact they have proven, as we all expected, that cephalochordates+echinoderms is baloney just why nature published the delsuc phylogeny of deuterostomes just with no hemichordates is beyond me. crapcrapcrapcrapcrap!
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Gerhart, Lowe, and Kirschner have done just that in hemichordates, and have results that strengthen the affinities between chordates and hemichordates.
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Gerhart, Lowe, and Kirschner have done just that in hemichordates, and have results that strengthen the affinities between chordates and hemichordates.
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The hemichordates are marine worms that have gill slits and a stub of a tail.
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The chordate phylum has all four of those traits, but there is another extremely interesting phylum that has some of them, the hemichordates.
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The hemichordates are marine worms that have gill slits and a stub of a tail.
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The chordate phylum has all four of those traits, but there is another extremely interesting phylum that has some of them, the hemichordates.
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Actually, the Bourlat paper shows how better taxon sampling, by including the hemichordates ad xenoturbella, trashes delsuc’s weird cephalochordates+echinoderms.
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