Suppose Pasteur's Swan-Necked Flasks Containing Boiled Broth Became Cloudy 24

question 10

Multiple Choice

Suppose Pasteur's swan-necked flasks containing boiled broth became cloudy 24 hours after boiling. Which choice could best explain the turbidity or cloudiness in the broth without supporting spontaneous generation?

• A) Endospores in the broth survived boiling and grew after the broth cooled.
• B) Contaminating organisms in the broth killed by boiling became alive again after the broth cooled.
• C) Chemicals in the broth came together to form living organisms.
• D) The broth allowed light to pass through it with less interference after boiling.
• E) Solid material in the broth dissolved during boiling.

---

Definitions:

Matched Designs

A research method in which participants are paired or grouped based on similarities in key characteristics to control for those variables in an experiment.

Correlational Experiments

Research methods that examine the relationship or correlation between two or more variables without manipulation by the experimenter.

Psychological Effects

The impact on an individual's thoughts, feelings, and behaviors resulting from various stimuli or experiences.

Natural

Existing in or derived from nature; not made or caused by humankind.