Question

multiple choice 2 points
louis pasteur provided what evidence related to the idea of spontaneous generation?
(image of pasteurs experiment setup and description: pasteur put clear broth into two flasks with curved necks. the necks could let in oxygen but keep out bacteria from the air. pasteur boiled the broth in one flask to kill any bacteria in the broth. he did not boil the broth in the other flask.
in a few days, the unboiled broth became cloudy, showing that new bacteria were growing. the boiled broth remained clear. pasteur concluded that bacteria do not spontaneously arise from the broth. new bacteria appeared only when living bacteria were already present.
later, pasteur broke the neck of the flask with boiled broth that had remained clear and exposed it to open air. bacteria from the air entered the flask. in a few days, the broth became cloudy. he then concluded that new bacteria arose only from existing bacteria.)
options:

• that all living things need energy
• that life arises from other life and not spontaneously from nonliving materials
• that black holes are the home of kaiju
• that all living things have dna

Explanation:

Louis Pasteur's swan-neck flask experiment showed that boiled broth remained clear (no bacterial growth) as the curved neck trapped airborne bacteria, while broth became cloudy only when the neck was broken (allowing bacteria to enter). This disproved spontaneous generation, proving life comes from existing life.

Answer:

That life arises from other life and not spontaneously from nonliving materials