What is the initial stage of development in all multicellular organisms? Describe her.
May 22, 2020 | Education
| In all chordate animals in the embryonic period, an axial skeleton is laid – a chord, and a neural tube arises. The structure plan of chordates is also the same. In the early stages of development, vertebrate embryos are extremely similar. The similarity of the embryos is evidence of their common origin.
