Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Obtain Oxygen Movement Reproduction Adaptations
Mollusks • Characteristics of M0llusks Definition Body Structure Circulatory System Obtain food Obtain Oxygen Movement Reproduction Adaptations • An invertebrate with a soft, unsegmented body; most are protected by a hard outer shell.
Mollusks • Characteristics of Mullosks Definition Three Groups Body Structure Circulatory System Obtain food Obtain Oxygen Movement Reproduction Adaptations • gastropod • A mollusk with a single shell or no shell. • Ex. Snails, Slugs
Mollusks • Characteristics of Mullosks Definition Three Groups Body Structure Circulatory System Obtain food Obtain Oxygen Movement Reproduction Adaptations • bivalve • A mollusk that has two shells held together by hinges and strong muscles. • Ex. Clams, Scallops
Mollusks • Characteristics of Mullosks Definition Three Groups Body Structure Circulatory System Obtain food Obtain Oxygen Movement Reproduction Adaptations • cephalopod • An ocean-dwelling mollusk whose foot is adapted as tentacles that surround its mouth. • Ex. Octopus, Squid
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Obtain Oxygen Movement Reproduction Adaptations • Bilateral Symetry • Two Openings, One Way Digestive System
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Gastropods Bivalves Obtain food Obtain Oxygen Movement Reproduction Adaptations • Open Circulatory System A circulatory system in which the heart pumps blood into open spaces in the body and blood is not confined to blood vessels.
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Cephalopods Obtain food Obtain Oxygen Movement Reproduction Adaptations • Closed Circulatory System A circulatory system in which the heart pumps blood through blood vessels.
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Gastropods Obtain Oxygen Movement Reproduction Adaptations • Radula A flexible ribbon of tiny teeth in mollusks.
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Bivalves Obtain Oxygen Movement Reproduction Adaptations • Filter feed • Food particles stick to mucus, then moved to mouth by cilia
http://www.youtube.com/watch?v=vNqEQjGaDVkhttp://www.youtube.com/watch?v=VTuBbuUro4g&NR=1http://www.youtube.com/watch?v=vNqEQjGaDVkhttp://www.youtube.com/watch?v=VTuBbuUro4g&NR=1
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Cephalopods Obtain Oxygen Movement Reproduction Adaptations • Captures food with tentacles and uses beak and radula to break down food
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Obtain Oxygen Movement Reproduction Adaptations • Gill An organ that removes oxygen from water.
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Obtain Oxygen Movement Gastropods Reproduction Adaptations • Move slowly on mucus secreting foot
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Obtain Oxygen Movement Bivalves Reproduction Adaptations • Uses foot to dig and jump • Moves shells to create a jet type propulsion
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Obtain Oxygen Movement Cephalopods Reproduction Adaptations • Jet propulsion
http://www.youtube.com/watch?v=5o-OMa53F1s&feature=related
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Obtain Oxygen Movement Reproduction Gastropods Adaptations • Internal and sometimes external sexual reproduction • Male and Female; sometimes Hermaphrodites
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Obtain Oxygen Movement Reproduction Bivalves Adaptations • External sexual reproduction • Male and Female; sometimes Hermaphrodites
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Obtain Oxygen Movement Reproduction Cephalopods Adaptations • Internal sexual reproduction • Male and Female
Mollusks • Characteristics of Mullosks Definition Body Structure Circulatory System Obtain food Obtain Oxygen Movement Reproduction Adaptations • What are some adaptations that mollusks have for carrying out their life functions?
