Disproval of Spontaneous Generation

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

• biogenesis

• spontaneous generation

• cell theory

• evolution

__________ is the theory that living things come from other living things.

• biogenensis

• 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 scientist came up with a method still used today for preserving our food and drink.

• Needham

• Redi

• Pasteur

• Spallanzani

This scientists finally disproved spontaneous generation once and for all.

• Needham

• Miller and Urey

• Pasteur

• Spallanzani

One criticism of Spallanzani's experiment was

• he didn't boil the broth long enough

• he had a poorly controlled experiment

• all of the options listed

• air could not get to the broth

Pasteur was able to keep the broth her boiled open to air by

• using a special S shaped flask

• adding a fan to allow better air flow

• none of the options listed

• both of the options listed