Bilaterians 0.0 / 5 ? BiologyEcologyUniversityNone Created by: AnnaFHarrisonCreated on: 04-01-18 20:37 What is a lophophore? A crown of ciliated tentacles for feeding 1 of 13 What is a trochophora? A simple larvae with cilia belt 2 of 13 Characteristics of ectoprocta Colonial, hard exoskeleton, retractable lophophore 3 of 13 Characteristics of brachiopoda resembles clams but with dorsal-ventral shell halves, pedicle anchors them to the substrate, lophophore for filter feeding 4 of 13 Characteristics of nemertea long & thin ribbon worms, proboscis used for hunting, circular muscles contract to increase presure, exverting proboscis 5 of 13 Characteristics of annelida segmented worm consisting of polychaetes and oligochaetes - each segment has its own excretory system, one ganglion per segment 6 of 13 Characteristics of polychaeta Generally marine, clear head region, each segment has parapodia and cheatae, alternates between left & right parapodial power strokes 7 of 13 Examples of polychaeta fan worms and christmas tree worms 8 of 13 Characteristics of oligochaeta earthworms, no clear head region, locomotion by perstalic crawling, chaetae provide anchor 9 of 13 What are Hirudinea? leeches, - reduced segmentation, no chaetae, suckers with blade-like jaws 10 of 13 what are tardigrada? waterbears/moss piglets, survive extreme environments 11 of 13 What are nematoda? Unsegmented roundworms, vital for the survival of trees, pseudocoelomates. 12 of 13 How do nematoda move? Only longitudinal muscles, no circular 13 of 13
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