The correct sequence of development of embryonic stages in humans is:

1.	Zygote → Blastula → Blastocyst
2.	Zygote → Gastrula → Blastula
3.	Zygote → Blastocyst → Gastrula
4.	Zygote → Gastrula → Blastocyst

The first movements of the fetus and the appearance of hair on the head are usually observed during:

Which of the following is not produced in the woman only during pregnancy?

In human beings, the embryo heart is formed about after ________ of pregnancy.

The signals of fetal ejection reflex originate from:

1. Maternal pituitary

2. Maternal hypothalamus

3. Fully developed fetus and placenta

4. Fetal pituitary

The milk produced during the initial few days of lactation, called colostrum, is essential for the newborn as colostrums contains:

After implantation, finger like projections appear on the trophoblast cells called:

Which of the following hormones is not secreted by the human placenta?

The fetal body is covered with fine hair, eyelashes separate, and eyelashes are formed by the end of:

What part of the early embryo differentiates into the three germ layers?