Question

1. ( Image is in comments) In vertebrates with a double-loop circulation as illustrated in the figure below, the loop that passes through the lungs is responsible for:
A. exchanging carbon dioxide for oxygen from the air.
B. exchanging oxygen for carbon dioxide from the air.
C. delivering oxygen-rich blood to the body.
D. delivering oxygen-poor blood to the heart.

Answer 1

c

Answer 2

I get to try this question twice and c was wrong the first time.

Answer 3

I'll try A.

Answer 4

C was correct for me

Answer 5

That's strange...