Answer ( 1 )

  1. A cow’s four-chambered stomach breaks down grasses she eats into things that nourish her and produce milk. The first chamber softens chewed plant material, which the cow burps up and chews several times again. In the next chamber, microorganisms feed on the plant material, making energy and proteins. As the content moves through the other chambers and into the small intestine, nutrients and excess water are absorbed into the bloodstream and then circulate to the mammary gland in the udder. There, specialized cells combine the nutrients with sugars from the cow’s liver to create milk.

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