1. The respiratory systemor respiratory system is a biological system consisting of organs and other structures used for gasexchange in animals and plants.
2. The anatomy and physiology of living things that carry out this gas exchange vary greatly, depending on their body size, the environment in which they live, and their evolutionary history.

Pembahasan

Animals are living things that certainly have a respiratory system. However, did you know that there are various animal respiratory systems according to the type and species. The animal respiratory system is a natural process carried out by animals to breathe oxygen in order to live. Where oxygen is needed by animals to convert some substances in the body into energy.

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