Because we do or we would die
Cells at Work (Hataraku Saibou)
I don’t speak Espanol but I think that u mean 2 digestão
Answer:
Organ level– an organ is a structure composed of at least two different tissue types that perform a specific function within the body. Examples include the brain, stomach, and liver. Complex functions begin to emerge at this level.
Explanation:
The physiology, behavior, and other qualities of a particular organism or class of organisms.