mollusk

In Glogpedia

by wwettt
Last updated 7 years ago

Discipline:
Science
Subject:
Zoology
Grade:
6

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mollusk

Mollusk

Cephalopodaa. Ex. Octopi, squidsb. Most active mollusksc. Soft-bodied, no shell or has a hard internal shell •Head is attached to a single foot that divides into tentaclesd. Bivalviae. Ex. Clams, oysters, mussels, scallops •Have two shellsFocus for this Phylum

Three Classes •Gastropodaa. Ex. Pond snails, Land slugsb. Either shell-less or have a single spiral-shaped shellc. Move using a ventral footCephalopodaa. Ex. Octopi, squidsb. Most active mollusksc. Soft-bodied, no shell or has a hard internal shell •Head is attached to a single foot that divides into tentaclesd. Bivalviae. Ex. Clams, oysters, mussels, scallops •Have two shellsFocus for this Phylum

Clam DigestionA-filter feedersB-Cilia and mucus on the gills trap food particles •Water enters the clam through the incurrent siphonC-And leaves through the excurrent siphon •Gastrointestinal Tract

Clam: Respiration, Circulation, ExcretionRespirationa. Breathe using gills inside of the mantle cavityb. Circulationc. Open Circulatory Systemd. Blood is pumped by a simple heart that moves oxygen and nutrients throughout the bodye. Leaves and enters the heart through different sinusesf. Large sac-like spaces •Excretiong. Nephridiah. Removes ammonia from the blood

Nervous Systema. Simple Nervous Systemb. Small ganglia near the mouth •Several nerve cordsc. Simple sense organs (eyespot)


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