The table shows the volume of water taken up over a 10 minute period for two species of plant, X and Y.
Both plants were tested at the same time, in the same room and using identical potometers. A student concluded that Y was a xerophyte so lost less water.
What feature of the experiment could bring this conclusion into doubt?
1 )
The student did not control air flow or temperature surrounding the plants.
2 )
The student did not leave the plants to acclimatise to their surroundings.
3 )
The student did not take measurements at 0 minutes.
The student did not take account of the area of leaves.
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