Bristleworm
Bristleworms or polychaetes are a class of annelid worms, generally marine. They are named for the numerous bristles, usually made of chitin, which are found along their sides.
Anatomy[edit | edit source]
Bristleworms have a well-developed head with eyes, antennae and sensory palps. The body consists of numerous segments; each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin.
Habitat and Distribution[edit | edit source]
Bristleworms are found in all marine environments, from the intertidal zone to the deep sea. Some species live in fresh water or are terrestrial.
Diet[edit | edit source]
Most bristleworms are scavengers or predators, but some are filter feeders, and a few are parasites.
Reproduction[edit | edit source]
Bristleworms reproduce both sexually and asexually. Some species have separate sexes, while others are hermaphroditic.
Importance to Humans[edit | edit source]
Bristleworms are important in marine ecosystems as they play a key role in the decomposition process. However, they can be a nuisance to aquarists as some species are known to harm corals and other invertebrates.
See Also[edit | edit source]
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