bio practical 142 #2 =]
TRANSCRIPT
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Class Polyplacophora
Chitons
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Class Bivalvia
• Mercenaria
Anterior
adductor
muscle
Dorsal
Ventral
Posterior
adductor
muscle
Mantle
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Foot
MantleCavity
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Gills
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Visceral mass
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Mouth
Labialpalps
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Heart
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Incurrent siphon
Excurrentsiphon
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Digestive gland
Gonad
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Class Gastropoda
• nudibranchs
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Subphylum:TrilobitaTrilobite
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Subphylum: ChelicerataClass: Merostomata
Limulus
Book gills
mouth
chelate
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chelicerae
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Compound eye
telson
cephalothorax
abdomen
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Class CephalopodaLoligo
Systemic
heart
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intestines
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gills
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gills
Mantle cavity dorsal
pen
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Siphon retractor muscle
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Female Loligo
Nidamental glands
Ovary
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Visceral mass
anterior
posteriorsiphon
Ink sac
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radulajaws
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esophagus
stomach
Buccal bulb
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mouth
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collar