Answer:
A) central nervous system
B) Peripheral nervous system
Air must pass from the back to the front of the pharynx to enter the trachea and food must pass from the front to the back of the esophagus
Random fertilization allows random combination of genetic information, which helps synthesize genetically unique gametes. The fusion of a unique sperm together with a unique egg can introduce further variation.
The two plates grab onto each other and lock in place is not a resulting situation of two plates colliding at a convergent boundary. When two plates colliding at a convergent boundary, what happenes is that one of the boundary either goes under or on top of the under, in order to release the energy that the two have stored because of the collision.
