Question

Choose between the two options to answer the question specified in the brackets for the following.
An example is illustrated.
Example: Corolla or Calyx (Which is the outer whorl?) Answer: Calyx.
Blood in the pulmonary artery or pulmonary vein (Which one contains less oxyhaemoglobin?)

Answer 1

Blood in the pulmonary artery contains less oxyhaemolgobin than the pulmonary vein. The pulmonary artery is the only artery which carries deoxygenated blood and the pulmonary vein is the only vein which carries oxygenated blood.