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25 Cards in this Set
- Front
- Back
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3 classes of annelids.
Describe. |
Oligochaetes-setae, nightcrawlers
Polychates-setae, marine worms Hirudinea- no setae, leeches |
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What do leeches feed on?
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Blood
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How do leeches move on land?
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Suction cups
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What is a body plan with tube inside a tube?
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Coelon
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What can parapodia be used for?
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Respiration, swimming, digging.
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How do earthworms help environment?
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Loosens soil, nutrients, part of food chain
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What do nephridia do?
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Collects nitrogenous waste
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What type of fertilization do bivialves use?
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External fertilization
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Why are bivalve gills sticky?
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To collect food particles
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What is better about annelids tthen mollusks?
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Segmented body
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What type of circulatory system bathes the organisnm in blood?
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Open
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Squid uses what to scrape food?
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Radula
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Are mollusks segmented?
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No
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What are the mollusks body regions?
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Head, foot, visceral muscles
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Terrestrial snails use what coeval lung?
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Mantle
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4 classes of mollusks? Name one of each.
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Gastropod- snail
Cephalopod- squid Bivalve- clam Polyplacophora- chion |
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What muscles Inca bivalve close the shell?
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Asductor
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Only mollusks with a closed circulatory system?
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Cephalopod
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What is a cepholopod with a shell?
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Nautilus
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What system sends and receives info?
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Nervous
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Where does the earthworms coordination come from?
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Brain and ganglia
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Torsion means what?
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Twists 180 degrees
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Cephalopods use what for jet propulsion?
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Siphon tubes
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Where is the trochophore found?
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Found in both phyloms
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What is a cilia used for?
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Movement. Gathering blood
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