Kingdom Animalia/Phylum Mollusca

Question 1

Digestive system of Phylum Mollusca

Answer 1

Complete digestive system

Question 2

Circulatory system of Phylum Mollusca

Answer 2

Open circulation minus squid (cephalopoda)

Question 3

Body Cavity

Answer 3

Eucoelmate, Dioecious

Question 4

Respiration

Answer 4

Gills, minus snails(absorb through mantle)

Question 5

Mantle

Answer 5

makes shells and lines mantle cavity which contains gills and lungs

Question 6

Radula

Answer 6

rasping chitinous tongue

Question 7

CLASS 1 GASTROPODA (Snails, slugs, and conchs)

Answer 7

complete digestive system, open circulation, eucoelmate, dioecious, respiration by gills or mantle

Question 8

snails (class gastropoda)

Answer 8

radula(rasping tongue-like structure with chitinous teeth (no radula on a slide)

Question 9

Slug (class gastropoda)

Answer 9

have pneumostome (external opening to lung chamber)

Question 10

Limpet and abalones

Answer 10

herbivores

Question 11

conch

Answer 11

omnivore

Question 12

Class Polyplacophora-chiton

Answer 12

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

Question 13

Class Cephalopoda (octopus, nautiloids, squid, cuttlefish)

Answer 13

Complete digestive system, closed-circulatory system, eucoelomate, dioecious, respiration by gills, radula, well developed arms

Question 14

Class Bivalvia (clams, oysters, mussels, scallops)

Answer 14

2 valves, 2 shells, no radula and most filter feeders, found in marine and freshwater, complete digestive, open circulation, eucoelmate, dioecious, respiration by gills

Question 15

Kingdom Animalia (phylum Annelida)

Answer 15

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)

Question 16

Class Errantia (Polychaeta)
fire worms, feather duster worms

Answer 16

mostly marine organisms, reproduces dioecious

Question 17

Parapodia

Answer 17

paired appendages on each segment that are used in locomotion and respiration

Question 18

Class Sedentaria (Oligochaeta)

Answer 18

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)

Question 19

Class Hirundinidea

Answer 19

mostly freshwater, few marine or terrestrial (leeches), no setae, no parapodia, no head or eyes, complete digestion, no internal septa, secret anticoagulant hirudin