Question

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Fish have adapted to their aquatic environment through the evolution of organs and muscles. discuss how these organs do and muscles help the fish in motion.

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Answer 1

Answer:

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Fish have a system of muscles for movement. Muscle contractions ripple through the body in waves from head to tail. The contractions whip the tail fin against the water to propel the fish through the water. Most fish have a swim bladder.

The skeletal muscle of the trunk and tail plays the most important part in locomotion and is stronger than the appendicular musculature, controlling the fins. Appendicular muscle derives from trunk myotomes, and only play a secondary part in locomotion, at least in the species that move by means of lateral undulation.

Answer 2

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