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avaesposito07

Answer:

Organs are organised into organ systems. An organ system is a group of organs that work together to do a job. The circulatory system includes the heart, veins and arteries. Its function is to transport substances in the blood, around the body.

michelle121564
Organ. In biology, an organ (from the Latin "organum" meaning an instrument or tool) is a collection of tissues that structurally form a functional unit specialized to perform a particular function. Your heart, kidneys, and lungs are examples of organs.

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