You have formulated a hypothesis: "Blueberries contain more vitamin...

You have formulated a hypothesis: "Blueberries contain more vitamin C than raspberries". To test this hypothesis you measure vitamin C levels in 20 blueberries and 20 raspberries from plants that were grown in the same field with the same temperature, amount of rain and sunlight. Select all statements that are true about this experiment.

The dependent variable is the vitamin C levels in the berries

The type of berry is a controlled variable

The control group in the experiment is the raspberries

The independent variable is temperature

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