It is called cell differentiation this makes embryonic cells would become specialized cells. This occurs threw a process that is called gene expression
Answer – B (Electrons)
When atoms combine, their nucleons fuse to produce a new nucleus and interactions occur between their electrons, particularly the outer valence electrons. The interaction between the outer valence electrons of the combining atoms forms bonds between them.
It would take roughly 5 seconds knowing that sound travels 310 meters per second
To maintain pressure within plant cells and keep structure while growth ensues. Good luck, milady. *Tips his fedora*