Which endometrial stage corresponds to the follicular phase of the menstrual cycle?

1.	proliferative	2.	luteal
3.	secretory	4.	menstruation

To inhibit ovulation, the corpus luteum secretes:
1. inhibin
2. activin
3. estrogen
4. progesterone

Just before the endometrium is shed during menstruation:
1. blood levels of estrogen and progesterone decrease.
2. blood levels of estrogen and progesterone increase.
3. the corpus luteum gets fully developed.
4. ovulation occurs.

Blastocyst gets implanted on the:
1. myometrium
2. perimetrium
3. endometrium
4. wall of the oviduct

The cavity of the blastocyst is called as:
1. archenteron
2. amnion
3. antrum
4. blastocoel

The thick transparent glycoprotein membrane surrounding a mammalian ovum before implantation is called:

The formation of the three embryonic germ layers is called:

The rudimentary alimentary cavity of an embryo at the gastrula stage is called:
1. vegetal pole
2. primitive streak
3. archenteron
4. blastocoel

Notochord develops from embryonic:
1. ectoderm
2. mesoderm
3. endoderm
4. archenteron

An infant can get passive immunity from: