Answer:
oxygen (O2)
Explanation:
During photosynthesis carbon dioxide(CO2) and water (H2O) react with help of the sunlight and produce glucose (main product) and oxygen(O2 ), which is by-product and abiotic factor. O2 is needed for all animals and plants to breathe.
B. the sun heats water stored...
Cerebral Aqueduct
Provide Structure To The Rhizomes. Carry Oxygen To Plant Parts Provide Buoyancy To The Blade.