This is false because people could use way much water
The concave disc shape of red blood cells Maximizes the surface area of the cell , allowing for rapid movement of oxygen or carbon dioxide to and form the hemoglobin within the cell.
It is a mass of 14 (brainlist me pls)
Frogs do have lungs but they are small and rarely used, frogs mostly take in moisture through the skin in process called cutaneous gas exchange.
Photosynthesis is an example of how people and plants are dependent on each other.