The reason why we were unable to read the lab manual through the tubes containing isotonic and hypertonic solution is because the cells in those solutions remained intact, causing the solutions to be opaque, in the tonicity of red blood cells activity. The reason why we can't read the lab manual is because the cells in the solutions remained intact.
Supply oxygen to cells for cellular respiration.
Answer:It is because he did not know that plants absorb mineral elements from the soil and carbon dioxide from the air.
Explanation:
I think it’s C. I know I’m right