Question

Select the correct statement for single circulatory heart :-
a. Heart is a two chambered having one atria and one ventricle
b. Heart pump the blood to gills for purification
c. It is called as venous heart because it always receive deoxygenated blood
d. All of these

Answer 1

Hello friend you answer to your question is option d all of these

Answer 2

The correct statement for single circulatory heart is (d) All of these

• Blood runs via a single circuit in single circulation, where the heart pumps blood to the gills for oxygenation, following which the blood flows to the rest of the body and back to the heart
• Fish, for example, are known to have a single circulatory system. Furthermore, their hearts are two-chambered, with only one atrium and ventricle
• The atrium gathers blood that has returned from the body, and the ventricle pumps it to the gills, where gas exchange and re-oxygenation take place; this is known as gill circulation
• The heart gets deoxygenated blood from the tissues, which is pumped to the gills for purification, and oxygenated blood is then delivered to various bodily tissues. Deoxygenated blood returns to the heart from the tissues. Hence, it is called venous heart
• Therefore, blood flows through a single circulatory path and so it is called single circulation.