Primary meristematic tissue helps the plant increase in length or vertical growth, meaning it helps the plant grow up toward the sun and down into the soil. It also helps a plant grow in thickness so that the roots and branches are stronger.
hope this helps :)
Because the heart don't have the nerves to fell stressed, the most reliable organ to measure stress would be the brain. hope this helps
Mitochondria are known as the powerhouse of cells because they are responsible for the releasing of energy from food. For example: cellular respiration.
I am pretty sure that the answer is carbon dioxide.