Identify the correct path for OXYGEN-POOR blood - right atrium, right ventricle, pulmonary artery, lungs

- left atrium, left ventricle, aorta, body

- left atrium, right atrium, left ventricle, right ventricle

-right ventricle, right atrium, pulmonary veins, lungs

The correct pathway for oxygen-poor blood is right atrium → right ventricle → pulmonary artery → lungs (first option).

Explanation:

Unoxygenated or oxygen-poor blood is that which comes from tissues that have exchanged O₂ for CO₂. The venous return is in charge of taking that blood to the heart and then to the lungs.

Once in the lungs, the blood exchanges CO₂ for O₂, returning to the heart through the pulmonary veins.

The other options are not correct because:

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.