What sieve-like structure sits in the upper jaw of a plankton-eating whale?
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They have bleen plates which are seive like structures in the upper jaw of a plankton eating whale.
They are made up of keratines.
# Hope it helps.
They are made up of keratines.
# Hope it helps.
Answered by
2
The sieve like structures which sits in the upper jaw of a plankton -eating whale have bleen plates which are made up of keratin
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