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K. Esau dominated in the field of plant ...

K. Esau dominated in the field of plant biology up to the age of 99 years. She conrtributed mainly in the field of

A

Morphology of flowering plants

B

Anatomy of seed plants

C

Classification of flowering plants

D

Physiology of seed plants

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The correct Answer is:
B

K Esau who dominated the field of plant biology up to age of 99 years, contributed mainly in the field of anatomey of seed plants
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Fill in the blanks : When Katherine Esau died in the year 1997, ………, director of Anatomy and Morphology Missouri Botanical Garden, remembered that she 'absolutely dominated' the field of plant biology even at the age of 99.

A thermocol vessel contains 0.5kg of distilled water at 30^(@)C . A metal coil of area 5 xx 10^(-3) m^(2) , number of turns 100 , mass 0.06 kg and resistance 1.6 Omega is lying horizontally at the bottom of the vessel. A uniform time-varying magnetic field is set up to pass vertically through the coil at time t = 0 . The field is first increased from zero to 0.8 T at a constant rate between 0 and 0.2 s and then decreased to zero at the same rate between 0.2 and 0.4s . the cycle is repeated 12000 times. Make sketches of the current through the coil and the power dissipated in the coil as function of time for the first two cycles. Clearly indicate the magnitude of the quantities on the axes. Assumes that no heat is lost to the vessel or the surroundings. Determine the final tempreture of water under thermal equilibrium. Specific heat of metal = 500 j kg^(-1) K^(-1) and the specific heat of water = 4200 j kg^(-1) K^(-1) . Neglect the inductance of coil.

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A2Z-ANATOMY OF FLOWERING PLANTS-Section C : Previous Years' Examination Question (NEET/AIPMT Questions )
  1. an old trunk of shisham ( Dalbergia sisso) tree would have the maximum...

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  2. Casparian thickenings are found in the cells of Or In dicot roots,...

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  3. K. Esau dominated in the field of plant biology up to the age of 99 ye...

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  4. Meristematic tissues in plants

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  5. The meristem which develops into a primary vascular tissue is Or ...

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  6. Companion cells are usually seen associatied with

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  7. Vascular bundles are closed when they lack

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  8. In which of the following sclerenchyma cells the secondary cell walls ...

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  9. The plant tissues commonly found in fruit walls of nuts and pulp of s...

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  10. The long plants are capable of standing erect due to presence of

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  11. A cut trunk shows 26 concentric rings of spring wood and autumn wood i...

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  12. A common character of monocot and dicot roots is

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  13. Water containing cavities in vascular bundles are found in

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  14. Gymnosperm are soft wooded as they lack

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  15. complementary cells occur in

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  16. Collateral open vascular bundles and eustele are found in

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  17. As compared to a dicot root, a monocot root has

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  18. Radial conduction of water takes place by

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  19. The elements of xylem tissue that store tannins are

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  20. Find out the wrong statement about angiosperm roots

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