The heart is one organ associated with the circulatory system.
The heart is the muscular organ that pumps blood throughout the circulatory system, supplying oxygen and nutrients to the body's tissues and removing waste products.
the heart is part of the circulatory system in the body.
The Heart is the main organ of a circulatory system.
The circulatory system and the cardiovascular system. :D NOT jk
The heart is the main organ of the circulatory system.
The cadiovascular system, sometimes called the circulatory system when it includes the lymphatic system.
circulatory system does.
the heart is the main circulatory organ of the frog
the circulatory system
Circulatory System
Circulatory
Circulatory.