It is true - cytokinesis is the last stage of mitosis or meiosis.
There are probably lots of answers to this question, but the one that comes to my mind is folic acid. Getting enough folic acid during pregnant help prevent neural tube defects such as spina bifida in a baby. Hope this helps!
The stomata closes down at night when there is no sun and there's no photosynthesis. It also closes down when the air is dry and when it's hot so as to prevent excessive loss of water.
Carbon dioxide and water are known as byproducts. Please take note that respiration and photosynthesis are basically the exact opposite of each other. Respiration takes diatomic oxygen or simply O2 from the atmosphere and changes it with carbon dioxide or CO2. On the other hand, photosynthesis takes out CO2 from the atmosphere and changes it with O2.
