Answer:
because it can
Explanation:
there is no need to explain
Answer:
Gastrulation leads to the formation of the three germ layers that give rise during further development to the different organs in the animal body. This process is called organogenesis. Organs develop from the germ layers through the process of differentiation.
<span>This setting will no longer happen for people nowadays
are much conscious with their health and that people would not think of food
scarcity, for all types of food are made available and that various fitness gym
are everywhere. Being obese is lack of self-control and eating healthy diet is
always choice. </span>Therefore, evolve mechanisms
are not always adaptive in modern society.
I'm not sure, but the prefix "bi" means "two" so I would say two divisions. Hope I helped! :)