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A chaeta or cheta (from Ancient Greek χαίτη (khaítē) 'crest, mane, flowing hair'; pl. chaetae) is a chitinous bristle or seta found on annelid worms, although the term is also frequently used to describe similar structures in other invertebrates such as arthropods.
The worm has 21 segments and 16 of them bear chaetae (the bristled setae of polychaetes). The face is somewhat flattened. The body is cylindrical, but tapers slightly toward the posterior end. In life, the worm is transparent, with ring-shaped integument (scaly ridges) along the back, and discontinuous brown stripe markings.
3.2 Body wall, chaetae and parapodia. 3.3 Nervous system and senses. 3.4 Coelom, ... Download QR code; Print/export
Polychaeta (/ ˌ p ɒ l ɪ ˈ k iː t ə /) is a paraphyletic [1] class of generally marine annelid worms, commonly called bristle worms or polychaetes (/ ˈ p ɒ l ɪ ˌ k iː t s /).Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin.
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Zendaya still thinks about her 2013 stint on “Dancing with the Stars.”The runner-up on Season 16 of the ABC dance competition series told W in a recent interview that she wished she had not ...