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- Annelid - Wikipedia
The annelids ( ˈænəlɪdz ), also known as the segmented worms, are animals that comprise the phylum Annelida ( əˈnɛlɪdə ; from Latin anellus 'little ring') [3][a] The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches
- Annelid | Definition, Characteristics, Habitat, Reproduction, Diet . . .
Annelid, any member of a phylum of invertebrate animals that are characterized by the possession of a body cavity (or coelom), movable bristles (or setae), and a body divided into segments by transverse rings, or annulations, from which they take their name
- Annelid - Examples, Characteristics, Anatomy, Pictures
Annelids, commonly known as segmented worms, are soft-bodied, bilaterally symmetrical invertebrates of the phylum Annelida They constitute the earthworms, leeches, and ragworms, traditionally grouped into polychaetes, oligochaetes (including earthworms), and leech-like species
- Annelid - Segmentation, Setae, Metamerism | Britannica
Annelid - Segmentation, Setae, Metamerism: The body of an annelid is often described as a tube within a tube The body form of polychaetes varies, depending on whether the polychaete is free-moving, sedentary, or pelagic (ocean-dwelling)
- Annelid - New World Encyclopedia
There are about 15,000 known modern species of annelids Annelids are found in most wet environments and include many terrestrial, freshwater, and especially marine species (such as the polychaetes), as well as some which are parasitic or mutualistic
- Annelids - Encyclopedia of Arkansas
Annelids are bilaterally symmetrical, triploblastic invertebrates that inhabit a wide diversity of habitats, including marine environments such as tidal zones, hydrothermal vents, lotic and lentic freshwater habitats, and moist terrestrial habitats
- Annelid - Wikiwand
The annelids ( ˈænəlɪdz ), also known as the segmented worms, are animals that comprise the phylum Annelida ( əˈnɛlɪdə ; from Latin anellus 'little ring') The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches
- Annelid - Segmentation, Metamorphosis, Reproduction | Britannica
In annelids, the first four cells (blastomeres) give rise, by alternating clockwise and counterclockwise divisions, to a cap of smaller cells, called micromeres, at one end of the egg and a cap of larger cells, called macromeres, at the other end
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