Definition of pterobranch in English:

pterobranch

noun ˈtɛrə(ʊ)braŋkˈterəˌbraNGk

Zoology

A minute tube-dwelling colonial acorn worm found chiefly in deep water.
〔动〕羽鳃
Class Pterobranchia, phylum Hemichordata
Example sentencesExamples
- The ciliary bands on the phoronid and brachiopod tentacles are upstream-collecting bands with separate cilia on monociliate cells just like those of larvae or adults of pterobranchs, echinoderms and enteropneusts.
- Ax favors the Pharyngotremata hypothesis, but compiles evidence that not only the hemichordates but also the pterobranchs are paraphyletic grades.
- Previously, hemichordates were thought to be paraphyletic, with enteropneusts (acorn worms) more closely related to chordates and pterobranchs closer to echinoderms.
- The SSU data supported enteropneust paraphyly by placing acorn worms of the family Ptychoderidae as the sister to a group consisting of pterobranchs + acorn worms of the family Harrimaniidae.
- There are two classes of hemichordate, the pterobranchs and the enteropneusts, which differ greatly in appearance and lifestyle.

Definition of pterobranch in US English:

pterobranch

nounˈterəˌbraNGk

Zoology

A minute tube-dwelling colonial acorn worm found chiefly in deep water.
〔动〕羽鳃
Class Pterobranchia, phylum Hemichordata
Example sentencesExamples
- There are two classes of hemichordate, the pterobranchs and the enteropneusts, which differ greatly in appearance and lifestyle.
- The ciliary bands on the phoronid and brachiopod tentacles are upstream-collecting bands with separate cilia on monociliate cells just like those of larvae or adults of pterobranchs, echinoderms and enteropneusts.
- Ax favors the Pharyngotremata hypothesis, but compiles evidence that not only the hemichordates but also the pterobranchs are paraphyletic grades.
- The SSU data supported enteropneust paraphyly by placing acorn worms of the family Ptychoderidae as the sister to a group consisting of pterobranchs + acorn worms of the family Harrimaniidae.
- Previously, hemichordates were thought to be paraphyletic, with enteropneusts (acorn worms) more closely related to chordates and pterobranchs closer to echinoderms.

单词	pterobranch
释义	Definition of pterobranch in English: pterobranch noun ˈtɛrə(ʊ)braŋkˈterəˌbraNGk Zoology A minute tube-dwelling colonial acorn worm found chiefly in deep water. 〔动〕羽鳃 Class Pterobranchia, phylum Hemichordata Example sentencesExamples The ciliary bands on the phoronid and brachiopod tentacles are upstream-collecting bands with separate cilia on monociliate cells just like those of larvae or adults of pterobranchs, echinoderms and enteropneusts. Ax favors the Pharyngotremata hypothesis, but compiles evidence that not only the hemichordates but also the pterobranchs are paraphyletic grades. Previously, hemichordates were thought to be paraphyletic, with enteropneusts (acorn worms) more closely related to chordates and pterobranchs closer to echinoderms. The SSU data supported enteropneust paraphyly by placing acorn worms of the family Ptychoderidae as the sister to a group consisting of pterobranchs + acorn worms of the family Harrimaniidae. There are two classes of hemichordate, the pterobranchs and the enteropneusts, which differ greatly in appearance and lifestyle. Definition of pterobranch in US English: pterobranch nounˈterəˌbraNGk Zoology A minute tube-dwelling colonial acorn worm found chiefly in deep water. 〔动〕羽鳃 Class Pterobranchia, phylum Hemichordata Example sentencesExamples There are two classes of hemichordate, the pterobranchs and the enteropneusts, which differ greatly in appearance and lifestyle. The ciliary bands on the phoronid and brachiopod tentacles are upstream-collecting bands with separate cilia on monociliate cells just like those of larvae or adults of pterobranchs, echinoderms and enteropneusts. Ax favors the Pharyngotremata hypothesis, but compiles evidence that not only the hemichordates but also the pterobranchs are paraphyletic grades. The SSU data supported enteropneust paraphyly by placing acorn worms of the family Ptychoderidae as the sister to a group consisting of pterobranchs + acorn worms of the family Harrimaniidae. Previously, hemichordates were thought to be paraphyletic, with enteropneusts (acorn worms) more closely related to chordates and pterobranchs closer to echinoderms.
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