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Which sea creature has no skeleton at all?
وہ کون سی سمندری مخلوق ہے جس کا کوئی ڈھانچہ ہی نہیں ہے؟
  1. Shark
  2. Whele
  3. Star fish
  4. Jelly fish
  5. All of these
Explanation

Stiffening fibers traverse the jelly and in some jellyfish, the mesoglea can form hardened plates, rather like cartilage, that hinge together.

These plates provide support for the animal and the muscles may attach to these plates,

so they function as a skeleton.

But jelly fish does not have a proper skeleton.


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