Question

What features are characteristic of Actinopterygii? Actinopterygii are fish that have fins.

Answer 1

Answer: Characteristics: The fins are supported by rays, as the name indicates. In contrast to the cartilaginous fish they have a rigid skeleton. The swim bladder is also a unique feature of most ray-finned fish, enabling them to maintain buoyancy as they move up or down in the water.

Answer 2

Actinopterygii are bony fish that have spiny fins.

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