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Essential information about annelids, a large phylum of worms characterized by segmentation and a coelom. Learn about the three classes of annelids - polychaeta, oligochaeta, and hirudinomorpha - and their habitats, metamerism, the contents of each segment, and the importance of segmentation. Discover the basic organization of annelids and what parapodia are.
Typology: Quizzes
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TERM 1
DEFINITION 1 12,00 species Marine, freshwater, and terrestrial speices coelomate-euceolomate bilateral symetry TERM 2
DEFINITION 2 Polychaeta- marine family Oligochaeta-freshwater, marine terrestrial Hirudinomorpha-freshwater, marine, terrestrial TERM 3
DEFINITION 3 having repeated segments TERM 4
DEFINITION 4 coelom musculature nervous system circulatory system excretory system TERM 5
DEFINITION 5 segmentation provides framework for regional specialization because each segment is thought to be related independently of other segments segmantation helps to reduce the effect of predation segmentation is adaption for more efficient burrowing
TERM 6
DEFINITION 6 septa break annelids into segments Messentaries vertically line the digestive tract TERM 7
DEFINITION 7 lateral outgrowths of segments bearing chaete increase respiration and surface area help increase respiration and surface area