What were the issues that were causing our new country to fall apart?

It depends on which country you are talking about because each country has its own government, laws, economy, society, etc. the most common reason though would be interior problems.

Hi! after fertilization occurs, the zygote goes through mitosis and then differentiation (aka specialization of cells) to have a variety of cells that perform different functions. this allows for the creation of tissues and so on, all of which were once stem cells with no specific function.i hope i !