Question #6422545Single Choice

Biology

Question

In a study on the effect of light intensity on photosynthesis in plants, a student measures the rate of oxygen production in plants exposed to low, medium, and high light intensities.

Which of the following would be considered a confounding variable if not properly controlled?

Options

The type of plant used

The time of day the experiment is conducted

The amount of water given to the plants

All of the above

Answer & Analysis

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