Mass of cells formed during early embryomic development of an animal is

Describe homology in early embryonic development.

If the mesentoblast cell is removed in the early embryonic development of protostomes what would be the fate of such animals ?

Cell plate is formed during

Cell plate is formed during

Cell plate is formed during

In plants, during early embryonic condition-

In plants, during early embryonic condition-

During embryonic development which of the following is formed first ?