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Fill in the blanks.
Osteichthyans" commonly referred to as "fishes" have a ________________ endoskeleton.
Fishes control their buoyancy with an air sac known as a ________________.
Fishes breathe by drawing water over _______ in chambers covered by a bony flap called the ________________.

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Answer:

bony

swim bladder

mouth

operculum

Explanation:

Fill in the blanks.

Osteichthyans" commonly referred to as "fishes" have a _____Bony___________ endoskeleton.

Fishes control their buoyancy with an air sac known as a _____swim bladder_

Fishes breathe by drawing water over ___mouth ____ in chambers covered by a bony flap called the __operculum.______________.

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