AP BIOLOGY

Detailed explanation-1: -Breathing is a part of the process of respiration during which an organism takes in the oxygen-rich air and gives out air rich in carbon dioxide. The respiratory organs for the exchange of gases vary in different organisms.

Detailed explanation-2: -When an animal breathes, it takes in oxygen gas and releases carbon dioxide gas into the atmosphere. This carbon dioxide is a waste product produced by the animal’s cells during cellular respiration. Cellular respiration occurs in the individual cells. Digested foods have chemical energy stored in them.

Detailed explanation-3: -One definition of respiration is the exchange of oxygen and carbon dioxide between the blood of an animal and the environment. Carbon dioxide is also released when organisms breathe. Respiration also takes place at the cellular level. All plants and animals return both carbon dioxide and water vapor to the atmosphere.

Detailed explanation-4: -Respiration in animals such as humans occurs with the help of the lungs. The animals take oxygen from the air by using their lungs that send the usable oxygen to the cells of the animals to break down the taken food to obtain the energy.

Detailed explanation-5: -Answer: Solution: Animals, during respiration, take in oxygen and release carbon dioxide gas.