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Talja [164]
4 years ago
10

Inspired by Louis Pasteur's swan-neck flask experiment, a microbiology student was interested in repeating this experiment using

hay infusion instead of Nutrient broth. He placed a few strands of dried grass in a swan-neck flask containing sugar solution and boiled it for 30 minutes. After 3 days of incubation at room temperature, he noticed bacterial growth in the flask. Does this experiment support spontaneous generation?
Biology
1 answer:
Ghella [55]4 years ago
4 0

Answer:

No, this doesn't support spontaneous generation...

Explanation:

Although their are bacteria present on the media but the hay infusion techniques are only used for cilliates like<em> Paramecium</em>. So, the bacterial growth was due to mishandling and some possible source of contamination is also involved. Finally, because of these facts this experiment doesn't support spontaneous generation in any case.

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Answer:

Mass of first objects, m₁= 100 g = 0.1 kg  

Mass of second object, m₂ = 200 g = 0.2 kg  

Velocity of m₁ before collision, v₁= 2 m/s  

Velocity of m₂ before collision, v₂ = 1 m/s  

Velocity of m₁ after collision, v₃ = 1.67 m/s  

Velocity of m₂ after collision = v₄

According to the law of conservation of momentum:  

Total momentum before collision = Total momentum after collision  

m₁v₁ + m₂v₂ = m₁v₃+ m₂v₄

⇒ 0.1 * 2 + 0.2 * 1 = 0.1 * 1.67 + 0.2 * v₄  

⇒ 0.4 = 0.67 + 0.2 * v₄  

Explanation:

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