Fertilizin is secreted by which of the following?

Identify the human developmental stage shown below as well as the related right place of its occurrence in a normal pregnant woman,and select the right option for the two,together.

Cleavage divisions differ from normal mitotic divisions in that

The layer of the uterus which becomes much eroded due to placental villi is known as:

$Blastocyst$ is formed from the cleavage of zygote which gets implanted on the uterus.

What gives rise to an adult individual?