Question

Short explanation about development of an embryo in Human

Answer 1

Answer:

• The embryo is an early developmental stage of animals. in humans the embryo begins to develop about four days after an egg is fertilized. Three weeks after fertilization, though still smaller than a grain of rice, the embryo has a primitive heart. through the following weeks its tissues and organs will develop.

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Answer 2

In humans the embryo begins to develop about four days after an egg is fertilized. ... By this time, the embryo has become a fluid-filled sphere of nearly 100 cells. Some of the cells become fingerlike projections that anchor the embryo to the uterus to draw nourishment and oxygen and to rid the embryo of wastes.