the heart is the main circulatory organ of the frog
The main organ of the frog's circulatory system is the heart. The blood vessels are also critical components of the system.
The Heart is the main organ of a circulatory system.
the heart is part of the circulatory system in the body.
The heart is the main organ of the circulatory system.
The Circulatory System
The main organ of the circulatory system is the heart.
LUNGSSS
The heart.
The main organ of the circulatory system is the heart.The heart pumps blood tothe other parts of the body.
An artery is a part of the circulatory system, the main organ could be considered the heart
It is the heart.the heart
It is the heart.the heart
It is the heart.the heart