While gutting a fish, Nathan encountered an air-filled sac-like structure. What is the purpose of this structure in fish?

A.

It enables fish to breathe in water.

B.

It serves as a reserve space to store fat.

C.

It harbors bacteria that benefit the fish.

D.

It provides buoyancy to the fish.

Question

Biology

Essence Wu

23 April, 04:27

While gutting a fish, Nathan encountered an air-filled sac-like structure. What is the purpose of this structure in fish?

A.

It enables fish to breathe in water.

B.

It serves as a reserve space to store fat.

C.

It harbors bacteria that benefit the fish.

D.

It provides buoyancy to the fish.

+1

Answers (1)

Know the Answer?

Kate Barry · Answer 1

D. It provides buoyancy to a fish.

This air pocket is known as the swim bladder, and also called air bladder. This is a buoyancy organ possessed by most bony fish. The air bladder is located in the body cavity and is derived from an out pocketing of the digestive tube.

While gutting a fish, Nathan encountered an air-filled sac-like structure. What is the purpose of this structure in fish?A.It enables fish to breathe in water.B.It serves as a reserve space to store fat.C.It harbors bacteria that benefit the fish.D.It provides buoyancy to the fish.

While gutting a fish, Nathan encountered an air-filled sac-like structure. What is the purpose of this structure in fish?

A.

It enables fish to breathe in water.

B.

It serves as a reserve space to store fat.

C.

It harbors bacteria that benefit the fish.

D.

It provides buoyancy to the fish.