Question

why mammal have mammary gland​

Answer 1

Answer:

because mammal gave birth to a baby and when baby is born he/she require high nutrition and it will only get from the milk of mother by the mammary gland

Answer 2

Explanation:

$\tt\pink{\underline{\underline{Mammary\:Gland}}}$

→Human female has a pair of mammary gland (Breasts) that contain glandular tissue and fatty tissue.

→Each glandular tissue is divided into 15 to 20 Mamali lobes consists of a group of alveoli.

→The alvali open into mammary tubules

→The mammary tubules of each lobes open into small mammary duct.

→Several mama redux join to form a wider memory ampulla that is connected to lactiferous duct just before the nipple through which milk is released.