Answer:
C. lower concentrations of urea, uric acid, and ammonia and higher or equal concentrations of glucose
Explanation:
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The plant should be de-topped at least 4 cm above the surface of the soil.
The stump of the plant is tightly fitted with the apparatus.
Tube is filled with water, not completely but at least one-fourth
Remember to note the initial water level.
Note the final water level and draw interference by calculating the difference between two levels.