The triangular chamber associated with the heart of the frog is

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located on its dorsal side and receives blood from different parts of body

located on its ventral side and pumps blood to different parts of body

located on its ventral side and receives blood from different parts of body

located on its dorsal side and pumps blood to different parts of body

answer is C.

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Detailed Solution

In the frog's circulatory system, the sinus venosus is a triangular structure that serves as the collecting chamber for deoxygenated blood before it enters the heart. The sinus venosus receives blood from all the major vena cavae of the body and directs it into the atrium, which then pumps the blood into the ventricle.

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