Question

Complete the following table. Organ systems Organs Functions 1. Respiratory system 2. Circulatory system

Answer 1

*Respiratory system*
The respiratory system is a biological system consisting of specific organs and structures
used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history.

Circulatory system
The circulatory system of the lungs is the portion of the cardiovascular system in which oxygen-depleted blood is pumped away from the heart, via the pulmonary artery, to the lungs and returned, oxygenated, to the heart via the pulmonary vein.

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