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

2 answers:

6 0

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.

Anika [276]3 years ago

6 0

Actinopterygii are bony fish that have spiny fins.

For future reference, you might want to add "___" to your question to let people know it's a fill in the blank. You could also add the drop down questions as "A. B. C." to show it's a multiple choice question.

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