Answer:
By breathing when oxygen enters the body it goes to alveoli and gas exchange occurs then carbon dioxide comes out of the the body
Explanation:
Fueron identificados por un estudio de un grupo de investigadores en Israel y su análisis indica que el Homosapiens ya vivía fuera de África hace 185.000 años, unos 80.000 años antes de lo que se pensaba.
I think that the answer is C.
a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.
The volume is mass density is h,w,l
