Question

what came first egg or hean​

Answer 1

Answer:

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Eggs certainly came before chickens, but chicken eggs did not—you can't have one without the other. However, if we absolutely had to pick a side, based on the evolutionary evidence, we're on Team Egg.

what came first egg or hen*

Answer 2

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Hen came first since the calcareous shell of the egg can only be produced by the hen.