The microorganism evolved and adapted to its surroundings, growing as eons and eons passed by, mating with its species, reproducing and growing. Soon growing legs, organs, other bodily features. Feathers spurt forth, and it continued to adapt. Now it sits in coops on farms.

To answer your question, probably the hen.

Wow you know alot thats good but exactly not the eeg came from the dino's and it was mishseen eeg with a problem borned and a chicken came out but it was right to your answear to very good job :)

What, you mean like a mutation? Instead of a carniverous dinosaur coming out, it was seed-pecking poultry? Not sure what you mean or if that's even what you meant.

yes a mutation

i am pretty clever this is higher iq teset than 200 so you got a high iq like you and me its still hard to understand but yes it was the eeg and it was also the hen.

But that is a nigh impossible concept, you're talking about the dinosaur giving birth to an entirely new species. That's like a woman giving birth to a komodo dragon, and the dragon proceeds to repopulate. But this raises another question, with what species did the ''mutation'' chicken mate with in order to reproduce?

heh that was good you asked because the 'hen' and 'eeg' none came first they allready were there this is impossible to answear corectly

and yes the mutation chicken was named archepops first bird it was mating new bird species arcepops is mother of all birds it was a Chicken/dinosaur but some day a milliard years ago it was a wrong bird birth 'the chicken' thats the whole story

oh,sure c: i´ve seen this pic on google :3