4 years ago

Fill in the blanks.

Biology

1 answer:

sergey [27]4 years ago

7 0

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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