The circulatory system takes the carbon dioxide from the cells to the lungs and the respiratory system expels ir.
Mass is the amount of matter in any object.
During the day, plants carry out photosynthesis releasing carbon dioxide. During the night, there isn't any sunlight so the plants carry out cellular respiration releasing oxygen.
The speed of light in a vacuum is <span>299,792,458 meters/sec, or approximately 300,000 meters/second.
Hope this helps!</span>
The thyroid gland hope this helps #ZedTheZom
