Frog Hearts blood circulation?

Question

One atrium of the frog heart _____ blood from the body, and the other _____ blood from the lungs. Both atria _______ blood into the ventricle.

Please help me fill in the blanks.

I'm seriously sorry but I can't figure it out. Im bad at biology

Answer 1

One very basic rule: atria are for receiving blood, ventricles are for sending blood, and this is true for every circulatory system, so the answer is:

receives; receives; send

Answer 2

receives

receives

deliver