Question

Which of the following below is the correct order of embryonic developmental stages?

o fertilization, cleavage, gastrulation, differentiation
o cleavage, gastrulation, fertilization, differentiation
o fertilization, gastrulation, differentiation, cleavage
o differentiation, gastrulation, fertilization, cleavage
o cleavage, differentiation, fertilization, gastrulation

Answer 1

The correct order of embryonic developmental stages is fertilization, cleavage, gastrulation, and differentiation.

Step-by-step explanation:

The correct order of embryonic developmental stages is:

1. Fertilization: The process by which the sperm fuses with the egg to form a zygote.
2. Cleavage: The rapid cell divisions that occur after fertilization, resulting in the formation of a blastula.
3. Gastrulation: The process in which the blastula undergoes rearrangements to form the three germ layers.
4. Differentiation: The process by which the cells within the germ layers become specialized and take on specific functions.

Therefore, the correct answer is: fertilization, cleavage, gastrulation, differentiation.