1.4.2 Scientific Investigation in biology (T/F)

The first step in the scientific method is identifying a problem based on observation.

A good hypothesis must be vague and open-ended to allow flexibility in experiments.

The manipulated variable is also known as the dependent variable.

Controlled variables are kept constant throughout an experiment.

Planning an experiment includes identifying materials, methods, and controlling variables.

Conducting an experiment involves gathering empirical evidence to test the hypothesis.

Data analysis involves drawing conclusions directly without organizing the data.

A conclusion in a scientific investigation is based on the data collected and may lead to developing a new hypothesis.

In the investigation on the effect of light on photosynthesis, the responding variable is the amount of light.

Writing a report is the final step in a scientific investigation.

The controlled variable in the dough experiment could be the amount of yeast used.

The hypothesis \’If plants receive more light, then their growth will decrease\’ is testable and falsifiable.

The manipulated variable in the investigation of the effect of exercise on heart rate is the heart rate itself.

Data should always be presented in a table for easier comparison and analysis.

Controlled variables ensure that changes in the responding variable are due to the manipulated variable.

The responding variable is deliberately altered by the experimenter.

A well-designed experiment can be repeated to verify results.

In a scientific investigation, only one variable should be manipulated at a time.

The process of data analysis does not include identifying trends or patterns.

Drawing a conclusion involves comparing results with the hypothesis and suggesting possible explanations for observed trends.