49. Why is the fish circulation
classified as a simple and
complete circulation?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Complete circulation is in which
there no mixture of blood and
arterial . Simple circulation is
in which the circulates only in
circuit (as opposed the double
circulation have two circuits,
systemic circulation and pulmonary
circulation). In the circulatory
system simple and complete.