Which event motivated China to launch its self-strengthening movement in the 19th century

Foreign imperialism in China, its defeat in the Second Opium War (1860), the humiliating Treaty of Tientsin and the Taiping Rebellion (1850-1864) all exposed the Qing dynasty’s military and technological backwardness, particularly in comparison to European nations. These disasters triggered the rise of the Self-Strengthening Movement.

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 !