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zoology > Subclasses of Chondrichthyes > Flashcards

Subclasses of Chondrichthyes Flashcards

1
Q

What is the subclass with sharks, skates, and rays?

A

Elasmobranchii

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2
Q

What is the subclass with Chimaeras?

A

Holocephali

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3
Q

What makes Chimaeras (Holocephali) different from other classes?

A

-operculum covers 4 gills
-lacks scales
-teeth modified into crushing plates
-lateral line receptors in an open groove

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4
Q

What makes Elasmobranchii different from other classes?

A

-cartilaginous skeleton may be partially ossified
-placoid scales or no scales

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5
Q

What organisms does Holocephali have?

A

Chimaeras

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6
Q

What organisms does Elasmobranchii have?

A

sharks, skates, and rays?

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zoology (64 decks)

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