In 1668, Francesco Redi Conducted Experiments to Investigate the Concept

question 32

Multiple Choice

In 1668, Francesco Redi conducted experiments to investigate the concept of spontaneous generation.He began by putting pieces of meat into identical jars.Some jars were left open to the air, some were sealed, and some were covered with gauze that kept out flies while allowing the meat to be exposed to the air.Redi then observed whether or not fly maggots appeared in the meat.What hypothesis was Redi testing?

• A) Spontaneous generation is more likely to occur during the hot days of summer.
• B) Maggots do not arise spontaneously, but from eggs laid by adult flies.
• C) The type of meat affects whether spontaneous generation occurs.
• D) Spontaneous generation can occur only if air is present.
• E) Flies will develop from rotting meat if the meat is exposed to air.

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Definitions:

Predictions

Statements or forecasts about what will happen in the future based on analysis or observation.

Dependent Variable

The variable in an experiment that is expected to change in response to manipulations of the independent variable.

Amount of Food

The quantity of food served or ingested, typically considered in terms of nutritional content or caloric intake.

Control Group

In experimental studies, a group of subjects that does not receive the experimental treatment and is used as a baseline to compare the effects of the treatment.