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🔑:Viruses are non-living entities that require a host to replicate, while bacteria are single-celled organisms that can reproduce independently and can be beneficial or harmful to humans.

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🔑:The signing of the Declaration of Independence in 1776 was a pivotal event in American history, marking the colonies' formal separation from British rule and laying the foundation for the United States as an independent nation.

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🔑:A Haiku is a traditional form of Japanese poetry that consists of three lines with a total of 17 syllables, typically arranged in a 5-7-5 pattern. They often focus on nature, evoking a moment or emotion and emphasizing simplicity, depth, and a connection to the seasons. Haikus frequently employ kireji, or cutting words, to create a pause or add emotional resonance.

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🔑:"Bohemian Rhapsody" by Queen is primarily categorized as a rock opera, blending elements of progressive rock, hard rock, and ballad. Its unique structure features multiple musical styles and a narrative theme, setting it apart from conventional rock songs.