Answer:
your brain needs oxygen to think and your lungs need oxygen to live and keep your body going
Explanation:
i think not for sure tho
CO2molecule is a reactant in the first step and a final product in the fourth step of the Calvin-benson
Answer:
1st point describes both the sperm and ovum.
Answer:
Carbon Dioxide
Explanation:
Plant cells respire in the light and the dark, releasing carbon dioxide.
(brainliest please)