Final answer:
Breast milk is important for a baby's development and contains essential nutrients and immunoglobulins. Suckling at the breast triggers the release of prolactin and oxytocin, which stimulate the production and release of breast milk.
Step-by-step explanation:
Breast milk is crucial for a baby's development and growth. When a baby suckles at the breast, signals are sent to the hypothalamus, triggering the release of prolactin and oxytocin. Prolactin stimulates the mammary glands to produce milk, while oxytocin promotes the release of the milk. Breast milk contains essential nutrients and immunoglobulins that protect the baby from infections.