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tensa zangetsu [6.8K]
3 years ago
14

Arrange the stages of embryonic development in the correct order.

Biology
2 answers:
never [62]3 years ago
4 0
Egg, zygote, 2cell-stage, 4 cell-stage, morula, blasocyst
egoroff_w [7]3 years ago
3 0

Answer:

Embryonic development includes cleavage, blastulation, implantation, gastrulation and organogenesis.

Explanation:

Zygote undergoes cleavage divisions to form 2-cell, 4-cell and then 8-cell stage. The 8-cell stage then divides further to become a 16-cell stage called morula. It is a solid ball of cells. Morula then transforms into a 32 cell stage called blastocyst. It has a cavity called blastocoel. It is the at this stage the implantation of developing embryo occurs in the endometrium of uterine wall. Blastocyst then undergoes a process of gastrulation to form the gastrula stage which shows the presence of three germ layers i.e. ectoderm, mesoderm and endoderm. Once the germ layers are formed organogenesis begins.

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