NOUN
- any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth
How To Use chaetognath In A Sentence
- Thus, characters shared by chaetognaths and chordates are only those shared by all triploblastic metazoans and resolution of affinities depends upon adopting a preferred hypothesis of relationship.
- In the cnidarians, chaetognaths, and ctenophores, the opaque gut wall was the surface measured.
- Into the early 1990s most researchers and evidence suggested that the deuterostomes were composed of chordates, hemichordates, echinoderms, chaetognaths, and lophophorates.
- Of the phyla you haven't seen alive, I have seen: Chaetognatha, Nematomorpha, Nemertea, Sipuncula, Echiura which is really a subgroup of Annelida, Phoronida and Brachiopoda. So many phyla so little time
- Into the early 1990s most researchers and evidence suggested that the deuterostomes were composed of chordates, hemichordates, echinoderms, chaetognaths, and lophophorates.
- The only competing hypothesis - chaetognath affinity - provides some alternative interpretations; but the dorsal notochord, tail, and fin radials make this unlikely.
- In 1982, he demonstrated that the coniform elements of Phakalodus tenuis, a protoconodont, are histologically similar to the grasping spines of the living chaetognath, Sagitta.
- It should be noted that ‘deuterostomy’ (the anus developmentally proceeding the mouth) is not unique to Deuterostomia, but is also found in Bryozoa, Brachiozoa and Chaetognatha.
- Perversely, they failed to include any sequences from rotifers, gnathostomulids, chaetognaths, or, in fact, anything that might actually be comparable to Acanthocephala.
- Of the phyla you haven't seen alive, I have seen: Chaetognatha, Nematomorpha, Nemertea, Sipuncula, Echiura which is really a subgroup of Annelida, Phoronida and Brachiopoda. So many phyla so little time
