I believe the answer you are looking for is a cell cavity. Also known as: Cavity of cell, or cell space
Yes. It needs all its parts to survive.
Diaphragm...is the muscle that helps in respiration.....there are also some other but....you said flat so diaphragm !
Guard cells use osmotic pressure to open and close stomata, allowing plants to regulate the amount of water and solutes within them. In order for plants to produce energy and maintain cellular function, their cells undergo the highly intricate process of photosynthesis
