DENDROLOGY

Detailed explanation-1: -Animals take in oxygen through the lungs by internal and cellular respiration. It takes place inside the animal body and releases carbon dioxide. Plants photosynthesize their glucose. Animals obtain their glucose by the breakdown of carbohydrate molecules.

Detailed explanation-2: -Plants form glucose by photosynthesis and animals get glucose by breaking down the food they eat. During cellular respiration, glucose combines with oxygen to release energy and to form carbon dioxide and water. Most of the carbon dioxide in animals is released into the air when the animal breathes.

Detailed explanation-3: -Animals obtain energy from the food they consume, using that energy to maintain body temperature and perform other metabolic functions. Glucose, found in the food animals eat, is broken down during the process of cellular respiration into an energy source called ATP.

Detailed explanation-4: -All living things undergo some form of cellular respiration. The reason cells undergo cellular respiration is to release energy that is stored in glucose. This energy is used by cells to complete all metabolic processes. During cellular respiration, OXYGEN and GLUCOSE are used (these are called the reactants).

Detailed explanation-5: -Cellular respiration is the process by which organisms use oxygen to break down food molecules to get chemical energy for cell functions. Cellular respiration takes place in the cells of animals, plants, and fungi, and also in algae and other protists.