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$ Stilt roots grow obliquely into soil. ...

$ Stilt roots grow obliquely into soil.
! Respiratory roots are negatively geotropic.

A

If both As and R are correct and R is correct explanation of As

B

If both As and R are correct but R is not correct explanation of As

C

If As is correct, R is wrong

D

If both As and R are wrong.

Text Solution

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The correct Answer is:
B
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DINESH PUBLICATION-ENVIRONMENTAL ISSUES-Assertion and reason
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  2. $ Air pollutants are always gaseous. ! Ultraviolet rays do not cause...

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  3. $ Stilt roots grow obliquely into soil. ! Respiratory roots are nega...

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  4. $ Those lateral buds which are near the apical bud are called dormant ...

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  5. $ Weak stems which can climb a support without any climbing organs are...

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  6. $ The method of arrangements of leaves on a stem is calle Aestivation ...

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  7. $ Phylloclade is a stem modification. ! There are present flowers on...

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  8. $ Xylem is a simple permanent tissue. ! Xylem is present in Bryophyt...

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  9. $ Sieve tubes have "P" proteins. ! In gymnosperms, sieve tubes are a...

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  10. $ Xylem condition in roots is exarch ! Xylem has four different type...

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  11. $ Secondary growth occurs in those plants which have closed vascular b...

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  12. $ Leaves of monocots are amphistomatic. ! Dicot leaf has dimophic ce...

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  13. $ In osmosis, semipermeable membrane is a must. ! Cell wall is semip...

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  14. $ "Transpiration pull Theory" was proposed by Dixon and Joly . ! Los...

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  15. $ Water potential of distilled water is zero. ! C(2) cycle is also c...

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  16. $ those subtances which reduce the rate of transpiration are called tr...

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  17. $ Chlorosis means destruction or the loss of chlorophyll pigments. ...

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  18. $ The phenomenon of soil-less culture of plants is called Hydroponics....

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  19. $ Flower of Rafflesia is largest sized. ! Large flowers have wind po...

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  20. $ Insectivorous plants get nitrogenous nutrition from the insects. ...

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