Ammocoete larva and its importance in evolution
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The ammocoete larva is of petromyzon fish. The changing of internal organs of ammocoete, is stage of metamorphosis and is very important in its evolution into a petromyzon maurins or in petromyzon lamprey...
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Explanation:
The larval stage formation of the primitive lamprey is known as ammocoete larva.
It has many properties of ancient chordates and has some properties of the vertebrates like a dorsal nerve chord, primitive form of nervous system, gill slits, notochord, and a brain with eyes. This larva is actually petromyzon fish.
By the process of metamorphosis the internal organ of this larva became changed, which is one of the important features of the evolution into a petromyzon lamprey.
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