From which chamber of the human heart is blood pumped to the lungs?

Yes, I am working on it. My apologies for the incomplete previous message. Here are the solutions to the remaining questions:

12. From which chamber of the human heart is blood pumped to the lungs? (Referring to the diagram of the heart)
The diagram shows the right ventricle as chamber E. Deoxygenated blood from the body enters the right atrium (H), then moves to the right ventricle (E), which then pumps it to the lungs via the pulmonary artery (Q).
The correct answer is B. E.

13. The parts marked Q, R, S and P respectively are:

• A. Venacava, pulmonary artery, aorta, pulmonary vein
• B. Pulmonary vein, aorta, pulmonary artery, venacava
• C. Aorta, vena cava, pulmonary artery, pulmonary vein
• D. Pulmonary artery, aorta, pulmonary vein, vena cava

Based on the diagram of the human heart:

• Q is the pulmonary artery (carrying deoxygenated blood to the lungs).
• R is the aorta (carrying oxygenated blood to the body).
• S is the pulmonary vein (carrying oxygenated blood from the lungs to the heart).
• P is the vena cava (carrying deoxygenated blood from the body to the heart). Therefore, the correct order is Pulmonary artery, aorta, pulmonary vein, vena cava. The correct answer is D.

14. Undigested food is expelled from the alimentary canal through the anus by a process called ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________\