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30 September, 18:23

What is the advantage of the spiral valve in the shark's intestine how does this differ from the extremely long intestine of the human?

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  1. 30 September, 18:38
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    A spiral valve is the second rate part of the digestive tract of a few sharks, beams, skates, and bichirs. An alteration of the ileum, the winding valve is inside curled in endeavors to build the surface region of the digestive system and to expand supplement ingestion. The digestive organs of a shark are substantially shorter than those of warm-blooded animals. Sharks have made up for this issue by having a winding valve, or a parchment valve, inside the digestive tract to expand the retentive surface of the digestive tract. An outcome of the winding valve contacting the lumen of the ileum is that sharks can't pass substantial hard protests through their lower digestive tract, which makes them mindful in the matter of what they can and can't eat. Such protests rather stay in the stomach until adequately separated for going through the valve locale, or are spewed.
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