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In your own words, explain the difference between spontaneous generation and biogenesis? Choose one experiment done to support the biogenesis and explain the setup and outcome. Resnonses

Ask by Fleming Lee. in the United States
Jan 22,2025

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**Spontaneous Generation vs. Biogenesis** *Spontaneous Generation* is the outdated idea that living organisms can appear from non-living matter, like maggots from rotting meat. *Biogenesis* states that life comes only from existing life through reproduction. **Supporting Experiment: Louis Pasteur's Swan Neck Flask** Pasteur showed that without introducing microbes, broth stayed clean. He used a flask with a curved neck to prevent microbes from entering. When he broke the neck, microbes entered and the broth became cloudy, proving that life doesn't arise spontaneously.

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Spontaneous generation is the now-debunked theory that living organisms could arise from non-living matter without any biological parent, while biogenesis posits that life comes from pre-existing living organisms. Simply put, one suggests life can spring forth from the void, while the other firmly believes that life begets life! One famous experiment that supports biogenesis was conducted by Louis Pasteur in the mid-1800s. He used two swan-necked flasks filled with nutrient broth—one flask was left open while the other was sealed. Over time, the open flask became contaminated with microorganisms, whereas the sealed flask remained clear and free of life. This setup elegantly demonstrated that microorganisms, not the broth itself, were responsible for the development of life, thus strengthening the case for biogenesis!

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