"worm" nach Englisch mit Beispielen - Kollokationen-Wörterbuch Englisch
- Harrimania planktophilus is a marine acorn worm in the family Harrimaniidae.
- Harrimaniidae is a family of acorn worms.
- In addition to these, the deuterostomes also include the Hemichordata, or acorn worms.
- Thus, the acorn worm breathes about the same way as fish.
- The blood of acorn worms is colourless and acellular.
- In acorn worms, it seems to be primarily involved with coordinating muscular action of the body during burrowing and crawling.
- Therefore, acorn worms are sometimes said to be a link between classical invertebrates and vertebrates.
- Another method that some acorn worms use to obtain food is to collect suspended particles of organic matter and microbes from the water.
- Despite the close relationship between the two groups, the larva does not resemble that of the acorn worms; they are "planula-like".
- There are about 70 species of acorn worm in the world, the main species for research being Saccoglossus kowaleski.
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