Answer:
<em>Plants give out carbon dioxide not only at night but during the day too. It happens because of the process of respiration in which plants take in oxygen and give out carbon dioxide. As soon as the sun rises another process called photosynthesis starts, in which carbon dioxide is taken in and oxygen is given out</em>
A hypersensitive reaction to a specific antigen in the environment is a(n) _ALLERGY_.
C. All of the above
The cell membrane helps maintain the osmotic potential by doing both A and B, it does not make ATP however.
Elevation (it uses different colors to show the elevation of different places such as plains and mountains)
