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Biology 12 Online
OpenStudy (anonymous):

do chickens have sphincters

OpenStudy (anonymous):

They have a circular muscle around the opening of the cloaca. However: Birds do not have the muscles to control poop-like to hold it in. I'm sure they know when they have to go but it is just about impossible to train them because it just isn't in their natures and they can't delay the poop even if they tried.

OpenStudy (anonymous):

the cloaca is where the egg comes out right

OpenStudy (anonymous):

Yes, I believe so

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