Mammary glands are modified glands that develop within the female breast.

Mammary glands are modified apocrine glands that develop within the female breast.

Mammary glands are exocrine glands, which means that secrete their substances on the epithelial surface by the duct. In humans, those glands are arranged in organs such as the breasts. The main role of mammary glands is the production of the milk.  

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

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