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1. People can know what they are made up of.
We are all made of organ systems, organs, tissues, and cells. Without knowing them, we cannot know how our body works.
2. People can know how to prevent diseases.
We are all made of organ systems, different organ system has different diseases, without biology, we cannot know what is those diseases that may affect the organ system that can affect our body.
3. People can know what other things are made up of.
4. People can know the function of the parts of every organisms' body.
5. People can know what is other types of organisms.
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