polychaete
Segmented sea worm
A polychaete is a marine worm with bristly appendages along its segmented body—the bristles give the class its name, from Greek for "many hairs." Most live on the ocean floor, burrowing in sediment or building tubes.
Common examples include ragworms, lugworms, and the colorful Christmas tree worms that decorate coral reefs.
Segmented worm phylum member
- invertebrateAnimal sans backbone
- earthwormSegmented soil-dwelling invertebrate
- leechBlood-feeding aquatic worm
Moving on hands, knees
- swimmingLocomotion through water
- undulationRhythmic rise and fall
- bristleCoarse animal hair
- setaeStiff hairlike structures
creeping · peristalsis · jet propulsion · paddle · flexible · retractable · attachment
Burrowing coastal fishing bait
Stiff hairlike structures
Ocean's solid base
- benthicOf the sea bottom
- sedimentParticles settling in liquid
- coralMarine skeletal formation
- reefUnderwater rock or coral formation
tidepool · estuary · mangrove · plankton · pelagic · intertidal · subtidal · hydrothermal vent
Enclosed underground route
- burrowAnimal's dug dwelling
- excavateRemove earth systematically
- sedimentParticles settling in liquid
- substrateUnderlying supporting material
tube · mucus · gallery · filter-feeding · dwelling · sand grain · anchoring
Eats dead organic material
- filter-feederOrganism extracting food from water
- predatorOrganism that consumes others
- scavengerSeeker of refuse
- herbivorePlant-only consumer
annelid
Segmented worm phylum member
- invertebrateAnimal sans backbone
- earthwormSegmented soil-dwelling invertebrate
- leechBlood-feeding aquatic worm
crawling
Moving on hands, knees
- swimmingLocomotion through water
- undulationRhythmic rise and fall
- bristleCoarse animal hair
setae · creeping · peristalsis · jet propulsion · paddle · flexible · retractable · attachment
lugworm
Burrowing coastal fishing bait
setae
Stiff hairlike structures
gills · anterior · posterior · segmentation
seafloor
Ocean's solid base
reef · tidepool · estuary · mangrove · plankton · pelagic · intertidal · subtidal · hydrothermal vent · kelp
tunnel
Enclosed underground route
substrate · tube · mucus · gallery · filter-feeding · dwelling · sand grain · anchoring
detritivore
Eats dead organic material
- filter-feederOrganism extracting food from water
- predatorOrganism that consumes others
- scavengerSeeker of refuse
herbivore · food web · bioindicator · fouling