Final answer:
The subject of this question is Biology, and it asks about various organs of the human body and their functions.
Step-by-step explanation:
The subject of this question is Biology. These are organs of the human body that are involved in various physiological functions. For example, the brain is responsible for controlling thoughts, emotions, and bodily functions. The eyes are involved in vision. The heart pumps blood throughout the body. The kidneys filter waste from the blood. The lungs are involved in respiration. The liver detoxifies chemicals and metabolizes drugs. The skin acts as a barrier and helps regulate body temperature. The stomach and intestines are part of the digestive system, which breaks down food.