Why were there so many casualties in china ww2

The sheer incompetence and corruption of the Chinese government added millions of victims to the millions raped and murder by the Japanese...without the war, the Chinese Communists would never have defeated the nationalist. The Sino-Japanese war killed between 14 and 20 million Chinese people

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 !