Lab 3 Activity Sheet Flashcards

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1
Q

Bivalvia symmetry

A

bilateral

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2
Q

Bivalvia feeding adaptations

A

gills adapted to filter for food

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3
Q

Bivalvia locomotion

A

retractable “foot” that protrudes from the shell

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4
Q

Bivalvia predator defense

A

adductor muscles to keep it closed. hard shell

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5
Q

Bivalvia skeleton

A

mineralized skeleton

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6
Q

Bivalvia circulatory system

A

open

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7
Q

Gastropoda (snail) symmetry

A

bilateral. distorted by torsion

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8
Q

Gastropoda feeding

A

radula rasps

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9
Q

Gastropoda movement

A

contraction waves from posterior to anterior of gliding portion of foot

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10
Q

Gastropoda predator defense

A

Hard exoskeleton. Head can retract into shell. Mucus smells and tastes bad

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11
Q

Gastropoda skeleton

A

shell and hard exoskeleton. protection and muscle attachment

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12
Q

Gastropoda circulatory system

A

open

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13
Q

Cephalopoda symmetry

A

bilateral

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14
Q

Cephalopoda feeding

A

tentacles grab prey
arms bring prey to beak
beak acts like jaw
radula scrapes and cuts foods

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15
Q

Cephalopoda movement

A

jet propulsion (mantle fills with water and water is expelled by siphon) fins and arms and direction of siphon help with direction

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16
Q

Cephalopoda predator defense

A

chromatophores and ink pouch

17
Q

Cephalopoda skeleton

A

pen is hard internal structure used for stability in squid

18
Q

Cephalopoda circulatory system

A

closed