Kingdom Animalia/Phylum Mollusca Flashcards
Digestive system of Phylum Mollusca
Complete digestive system
Circulatory system of Phylum Mollusca
Open circulation minus squid (cephalopoda)
Body Cavity
Eucoelmate, Dioecious
Respiration
Gills, minus snails(absorb through mantle)
Mantle
makes shells and lines mantle cavity which contains gills and lungs
Radula
rasping chitinous tongue
CLASS 1 GASTROPODA (Snails, slugs, and conchs)
complete digestive system, open circulation, eucoelmate, dioecious, respiration by gills or mantle
snails (class gastropoda)
radula(rasping tongue-like structure with chitinous teeth (no radula on a slide)
Slug (class gastropoda)
have pneumostome (external opening to lung chamber)
Limpet and abalones
herbivores
conch
omnivore
Class Polyplacophora-chiton
scientific name means (poly), plates (plax), bearing (phora), Found in intertidal marine environments; species scrape algae off rocks using a radula, Complete digestive system, open circulation, eucoelomate, dioecious, respiration by gills
Class Cephalopoda (octopus, nautiloids, squid, cuttlefish)
Complete digestive system, closed-circulatory system, eucoelomate, dioecious, respiration by gills, radula, well developed arms
Class Bivalvia (clams, oysters, mussels, scallops)
2 valves, 2 shells, no radula and most filter feeders, found in marine and freshwater, complete digestive, open circulation, eucoelmate, dioecious, respiration by gills
Kingdom Animalia (phylum Annelida)
Digestive system(complete digestion), protostome(first opening is mouth), metamerism (body segmentation in Polychaeta and Oligochaeta), Body cavity(Eucoelomates - coelom well developed), circulatory system (closed circulatory), respiration-cutaneous (through the skin), sometimes gills or parapodia)
Class Errantia (Polychaeta)
fire worms, feather duster worms
mostly marine organisms, reproduces dioecious
Parapodia
paired appendages on each segment that are used in locomotion and respiration
Class Sedentaria (Oligochaeta)
most terrestrial or freshwater organisms, fewer setae, no parapodia, no gills, no eyes, minimal head, but lots of photo and chemoreceptors, simple excretion through metanephria, imp structure - typhlosole, infoldings of intestinal wall to increase digestion and absorption, reproduction(monoecious)
Class Hirundinidea
mostly freshwater, few marine or terrestrial (leeches), no setae, no parapodia, no head or eyes, complete digestion, no internal septa, secret anticoagulant hirudin