Spontaneous generation experiments and microscope

__________ is the belief that life can arise from non-living things.

• biogenesis

• spontaneous generation

• cell theory

• evolution

This scientist attempted to disprove spontaneous generation by putting out to containers of meat. One was covered & the other was not. Only the uncovered meat grew maggots.

• Needam

• Spallazani

• Miller and Urey

• Redi

Which scientists tried to disprove spontaneous generation?

• Spallazani

• Redi

• Pasteur

• all the options listed

The scientists by the last name of ______________ took 2 flasks of gravy & heated them but failed to boil them long enough. When microorganisms grew he stated that spontaneous generation was supported.

• Redi

• Needham

• Spallanzani

• Pasteur

This/These scientist(s) repeated Needham's experiment but boiled the broth longer - covered one and left the other open - only one spoiled.

• Redi

• Miller and Urey

• Oparin

• Spallanzani

This scientists finally disproved spontaneous generation once and for all.

• Needham

• Miller and Urey

• Pasteur

• Spallanzani

How long after boiling the broth was Pasteur able to keep it germ free?

• 1 month

• 2 months

• 1 year

• 3 years

What was the conclusion of Francesco Redi's Experiment

• Decaying meat turned into flies

• Decaying meat does not turn into flies

• non-living substances turn into living substances

• flies come from meat

What is Spontaneous Generation?

• idea that organisms could come from non-living matter

• the law that all living things come from nonliving things

• living things come from living things

• Non living things create all non living things

What mistake did Needham make in his experiment?

• He failed to properly seal the flasks

• He failed to heat the broth

• He used too much broth

• He sealed the flasks completely