1. Right and left atrium and ventricle.
2. There are the left and right atria and the ventricle.
3. 2 auricles and 1 ventricle are in 3 chambers in the frog's heart.
4. 2 right and left chambers:
1. atrium 1 lower chamber: ventricle.
5. (Frogs hearts have 3 chambers: 2 atria and 1 ventricle
6. A frogs hearts can be categorized by the number of chambers they have: Two atria and one ventricle(amphibian and reptile).
