Mangrove plants live in areas regularly flooded with salt water. Which of these is not a possible mechanism for controlling their salt balance?
A. The succulent leaves contain large quantities of water that dilute salt that is absorbed.
B. Excess salt is stored in special tissues.
C. The roots block salt uptake.
D. Modified roots emerge above the water level and help oxygen diffuse into the roots.
E. Absorbed salt is secreted from special salt glands.
Answer: D
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