Under the influence of oxytocin,which layer of the uterus exhibits strong contractions during parturition?

$A$: Colostrum is a very efficient means of transferring immunity to a newborn.
$R$: $IgM$ from mother's milk protects the baby from the respiratory infection usually affecting in young age.

Identify the correct path of milk secretion by the mammary glands.

Which of the following layers is responsible for the process of parturition?

The hormone that acts during parturition (child birth) but which has more effect on lactation is

The fresh secretion from animals used for the nourishment of young ones is: