Yes Carbon dioxide is necessary for photosynthesis because Photosynthesis didn't go on because there was no Carbon dioxide in flask X.
The carbon dioxide was absorbed by the sodium hydroxide. In flask Y, the colour of the iodine solution turned blue black. This is because starch was present in the leaf of flask Y. Starch was present because it underwent photosynthesis.
Answer: Photosynthesis
Explanation: Photosynthesis removes CO2 from the atmosphere and replaces it with O2. Respiration takes O2 from the atmosphere and replaces it with CO2.
Answer:
Photosynthesis
Explanation:
Hmmm I am not entirely sure but I think the explanation is that photosynthesis is a process in which simple compounds are used to make complex compounds whereas in the other processes mentioned its vice versa.
Hyperkeratosis is amy lesion with overgrowth and thickening of the skin, such as warts, calluses, and corns.