Question

how embryo will form? i should write it in notes ​

Answer 1

Answer:

First, the zygote becomes a solid ball of cells. Then it becomes a hollow ball of cells called a blastocyst. Inside the uterus, the blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes.

Explanation:

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Answer 2

An Embryo is an egg that has already been fertilized by a sperm cell. It is an organism in earliest stage of development.

Cleavage is the 1st major phase of embryonic development.

It is the rapid succession of cell division ( mitotic ).

It creates multi cellular embryo from zygote.

Stages - 1. morula : solid ball of cells, 2. blastula : single layer of cells surrounding a fluid filled cavity.

Gastrulation is the 2nd major phase of embryonic development.

It adds more cell to embryo.

It sorts all cells into 3 distinct cell layers.

The embryo is transformed fromf embryonic development.

It is the ra the blastula into the gastrula.

After Gastrulation the development of embryo begins and formation of organs like ectoderm endoderm and mesoderm occurs.