DENDROLOGY

Detailed explanation-1: -Leaves need oxygen and carbon-dioxide (for photosynthesis).

Detailed explanation-2: -Most living things need oxygen to survive. Oxygen helps organisms grow, reproduce, and turn food into energy. Humans get the oxygen they need by breathing through their nose and mouth into their lungs.

Detailed explanation-3: -All plants need oxygen for their survival because without oxygen plants cannot perform cellular respiration.

Detailed explanation-4: -Once they have water and carbon dioxide, they can use energy from sunlight to make their food. The leftovers from making the plant food is another gas called oxygen. This oxygen is released from the leaves into the air.

Detailed explanation-5: -Yes, both plants and animals need oxygen for cellular respiration. No matter which type of organism is doing cellular respiration, the inputs are glucose and oxygen and the products are carbon dioxide and water. As you know, we can’t do photosynthesis, but plants can do both photosynthesis and cellular respiration.