Mollusca and Annelida Lab Quiz

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13 Terms

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Coelomate body layer

- ectoderm

- endoderm

- mesoderm

- coelom

<p>- ectoderm</p><p>- endoderm</p><p>- mesoderm</p><p>- coelom</p>
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mollusca dissection parts

Foot- movement/burrowing in mud or sand to anchor

mantle- to enclose and protect internal organs, produce the clam shell, and secrete calcium carbonate

radula- organ for mechanical food processing

<p>Foot- movement/burrowing in mud or sand to anchor</p><p>mantle- to enclose and protect internal organs, produce the clam shell, and secrete calcium carbonate</p><p>radula- organ for mechanical food processing </p>
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type of circulatory system in mollusca

open circulatory system where an elongated beating heart splashes the fluid everywhere to cover organs

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feeding in clams

the incurrent siphon draws in water from the environment which contains food particles. As water enters, it passes over the gills that filter the food and oxygen. Once filtered from the gills, they are transported to the labial palps and this decides weather to ingest or reject the food. Lastly, the excurrent siphon gets rid of the filtered water and waste back into the ocean.

<p>the incurrent siphon draws in water from the environment which contains food particles. As water enters, it passes over the gills that filter the food and oxygen. Once filtered from the gills, they are transported to the labial palps and this decides weather to ingest or reject the food. Lastly, the excurrent siphon gets rid of the filtered water and waste back into the ocean.</p>
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Polyplacophora

Mollusca

chitin

<p>Mollusca</p><p>chitin</p>
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gastropoda

snails and slugs

Mollusca

<p>snails and slugs</p><p>Mollusca</p>
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Bivalvia

clams and oysters

Mollusca

<p>clams and oysters</p><p>Mollusca</p>
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cephalopods

octopus, squid

Mollusca

<p>octopus, squid</p><p>Mollusca</p>
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Annelida parts

Septa

clitellum

pharynx

esophagus

crop

dorsal blood vessel

intestine

gizzard

hearts

<p>Septa</p><p>clitellum</p><p>pharynx</p><p>esophagus</p><p>crop</p><p>dorsal blood vessel</p><p>intestine</p><p>gizzard</p><p>hearts</p>
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Hermaphroditic

Possessing both the male and the female reproductive organs

<p>Possessing both the male and the female reproductive organs</p>
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Hirudinea

leeches

annelida

<p>leeches</p><p>annelida</p>
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Polycheata

marine worms

annelida

<p>marine worms</p><p>annelida</p>
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Oligocheata

earthworms

annelida

<p>earthworms</p><p>annelida</p>