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no they have double loop circulatory system but the difference is that they have single ventricle.
YES.
A double circulatory system is also known as a double-loop circulatory system. This system contains two distinct pathways for blood to flow through the body. In most creatures, this consists of the loop between the lungs and heart, and the loop between the heart and body.
A circulatory system that involves the lungs is referred to as a double circulatory system. This is opposed to a single loop circulation that fishes have.
A single loop circulatory system is a type of circulatory system found in some simpler animals, where blood flows through the body in one continuous loop. This type of system lacks separate systemic and pulmonary circuits, with blood traveling from the heart to the gills or lungs, then to the rest of the body, and back to the heart. Examples of organisms with a single loop circulatory system include fish.
they have a single loop meaning the blood passes through the heart only once to go to everywhere in the body
Fish have closed-loop circulatory systems.
The double circulatory system refers to the two loops that the blood follows in the circulatory system. The first loop is the systemic circulation, where oxygenated blood is pumped from the heart to the body tissues and deoxygenated blood is returned to the heart. The second loop is the pulmonary circulation, where deoxygenated blood is pumped from the heart to the lungs for oxygenation and then returned to the heart.
Tadpole has two chambered heart and a single-loop system while the adult has a three chambered heart and a double-loop system
closed circulatory system
The circulatory system of a reptile is called a double loop system because it consists of two circuits: pulmonary circulation, where blood flows from the heart to the lungs to pick up oxygen and release carbon dioxide, and systemic circulation, where oxygenated blood is then distributed throughout the rest of the body before returning to the heart. This system allows for separated flows of oxygenated and deoxygenated blood, improving efficiency in supplying oxygen to tissues.
Brown bear have a close circulation system