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One difference is that sharks have a much shorter intestine because their food goes through a spiral valve that rotates it multiple times until it's fully digested.

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10y ago
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12y ago

yes! they have intestines just like all fish , that is how they digest their food

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11y ago

becausethere digestive system can be changed by the depths and the system can change the amount offood they eat aday so they can go days without eating anything.

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17y ago

Certainly, sharks have gills that absorb oxygen from sea water and release carbon di oxide. Sharks must keep moving even when sleeping to keep water flowing through their gills.

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14y ago

yes

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12y ago

no

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12y ago

Yes

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11y ago

yes

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Q: Do sharks have a respiratory system?
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