The third one, it releases H+ions into a solution.
Alveoli are tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream
Answer:
region 2 and region 3
Explanation:
you can tell by the color of the land my friends^^
The peripheral portion of the central nervous system (CNS) controls the skeletal muscles. Thus, these muscles are under conscious, or voluntary, control
Because the moon gets between the Sun and the Earth so you can't see the moon
