The annular and spirally thickened condu...

The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:

Maturing

Elongating

Widening

Differentiating.

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A parallel plate capacitor consists of two thin conducting plates each of area A held parallel to each other at a suitable distance d. insulating medium is generally filled between the plates. When one plate of the charged capacitor is earthed the charges flows, a) from plate to earth b) from earth to plate c) no change in charge on the plate d) capacitor gets discharged

Give the technical terms used for the following: It is the pressure development in tracheavy elements of xylem as a result of metabolic activities of root and considered to be an active process.

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These questions consist of two statements each,printed as Assertion and Reason.While asnwering these questions you are required to chose any one of the following four responses. If both Assertion and Reason are true and Reason in correct explanation of Assertion. If both assertion and Reason are true but reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Assertion:Minerals are mainly absorbed by roots which are in direct contact with atmosphere. reason:The absorbed mineral elements are transported from leaves to stem through xylem.

MODERN PUBLICATION-ANATOMY OF FLOWERING PLANTS-EXAMPLE

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