ANATOMY

Detailed explanation-1: -The correct answer is 2 i.e. Oesophagus.

Detailed explanation-2: -Explanation: The respiratory system is primarily used to transport air, while the digestive system is used to transport fluids (such as water) and solids (such as food particulates). The respiratory and the digestive systems share the region of the mouth and upper throat, where air, fluids, and solids can be mixed.

Detailed explanation-3: -Pharynx (throat): Tube that delivers air from your mouth and nose to the trachea (windpipe). Trachea: Passage connecting your throat and lungs. Bronchial tubes: Tubes at the bottom of your windpipe that connect into each lung. Lungs: Two organs that remove oxygen from the air and pass it into your blood.

Detailed explanation-4: -The nose, throat, and lungs are just a few parts of the body that make up the respiratory system. They work together to bring oxygen into the body and take carbon dioxide (a waste product) out.