A number of processes contribute to maintaining a water potential gradient in plants allowing water to reach the highest parts of a plant.
Which processes are responsible for maintaining this water potential gradient?
1 capillarity
2 osmosis
3 transpiration
1, 2 and 3
2 )
1 and 2 only
3 )
1 and 3 only
4 )
2 and 3 only
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