What is the complication of the structure of the circulatory system in amphibians in comparison with fish?
May 30, 2020 | Education
| 1) The heart becomes three-chambered.
2) Two circles of blood circulation are formed. In a small circle, blood from the ventricle enters the lungs, is saturated with oxygen and enters the left atrium. In a large circle, blood from the ventricle goes to the organs of the body, and from there to the right atrium.
3) The body receives mixed blood.
