The best definition of the process of gastrul | vedclass

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(C) Gastrulation is a phase in early embryonic development during which the single-layered blastula is reorganized into a multilayered structure known

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Cells move to occupy their definite positions

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(C) Gastrulation is a phase in early embryonic development during which the single-layered blastula is reorganized into a multilayered structure known as the gastrula.The most fundamental and defining characteristic of gastrulation is the morphogenetic movement of cells.During this process,cells migrate and rearrange themselves to occupy their specific,definite positions,which eventually leads to the formation of the three germ layers (ectoderm,mesoderm,and endoderm).While the formation of the archenteron and the transition from a single-layered to a multi-layered structure are consequences of gastrulation,the active movement of cells is the primary mechanism that defines the process.

Column $I$	Column $II$
$(A)$ First month	$(i)$ Separation of eyelids
$(B)$ Second month	$(ii)$ Hairs on head
$(C)$ Fifth month	$(iii)$ Heart
$(D)$ Sixth month	$(iv)$ Limbs and digits

The best definition of the process of gastrulation is that it is a process where the

Similar Questions

Match the months listed in Column $I$ with the organogenesis of the foetus in Column $II$.
Column $I$ Column $II$
$(A)$ First month $(i)$ Separation of eyelids
$(B)$ Second month $(ii)$ Hairs on head
$(C)$ Fifth month $(iii)$ Heart
$(D)$ Sixth month $(iv)$ Limbs and digits

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