The sequence of early development of the fetus is:
A) morula, zygote, and blastocyst.
B) zygote, morula, and blastocyst.
C) zygote, blastocyst, and morula.
D) morula, blastocyst, and zygote.

Question

Quizplus · Accepted Answer

After fertilization, the zygote undergoes several rounds of cleavage to form a solid ball of cells called the morula. The morula then transforms into a fluid-filled structure called the blastocyst. Therefore, the correct sequence is zygote, morula, and blastocyst.

The Sequence of Early Development of the Fetus Is