Dixon and Jolly are famous for

  • A
    Anaerobic respiration
  • B
    Light reaction of photosynthesis
  • C
    Cohesion theory of translocation
  • D
    Apical dominance

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Root pressure theory was proposed by . . . . . . .

Continuous upward flow of water stream in tall trees is maintained due to . . . . . . .

Which of the following is responsible for the transport of water and minerals from roots to stems,leaves,flowers and fruits in rooted plants?

Assertion $A$: In the process of ascent of sap,water rises as a continuous column.
Reason $R$: The cohesive force between water molecules is very high.
Which option is correct for Assertion $A$ and Reason $R$?

The ascent of xylem sap in plants is mainly accomplished by the :

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