It changes because of the movement of the concentration of students who breathe out CO2
Arteries carry blood away from the heart to the body.
During the process of photosynthesis, six molecules of carbon dioxide and six molecules of water react in the presence of sunlight to form one glucose molecule and six molecules of oxygen. The role of water is to release oxygen (O) from the water molecule into the atmosphere in the form of oxygen gas (O2).
Answer:
50%
Explanation:
r r
R| Rr |Rr
r|rr |rr
heres a crude attempt at a punnet square
B. mass extinctions happen when populations crash due to overpopulation while background extinctions are more likely to result from disease.
