Question

how were redi’s and pasteur’s experiments different?
○ redi studied broth, but pasteur tested meat.
○ pasteur studied flies, but redi tested meat.
○ pasteur tested for microorganisms, but redi studied larger organisms.
○ redi tested for microorganisms, but pasteur studied larger organisms.

Explanation:

Recall the experiments: Redi's experiment involved meat and flies (larger organisms) to disprove spontaneous generation for macroscopic life. Pasteur's experiment used broth and swan - neck flasks to test for microorganisms (like bacteria) in relation to spontaneous generation. So we analyze each option:

• Option 1: Redi studied meat, Pasteur studied broth. So this is wrong.
• Option 2: Pasteur didn't study flies, Redi studied meat and flies. Wrong.
• Option 3: Pasteur tested for microorganisms (in broth), Redi studied larger organisms (flies and meat). Correct.
• Option 4: Redi studied larger organisms, Pasteur studied microorganisms. So this is reversed. Wrong.

Answer:

C. Pasteur tested for microorganisms, but Redi studied larger organisms.