These individual cells again the same thing, they will start to come close and you have to maintain a certain density So that they could migrate close to each other.
या पेशी एकमेकांच्या जवळ येतील; म्हणून तुम्हाला घनता ठेवावी लागेल; जेणेकरून ते एकमेकांकडे सरकू शकतील.