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STD 11 - 13. Plant growth and development — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 13. Plant growth and development1 Mark
MCQ
Different growth phases results in a
  • ✓
    $‘S’ $ shaped curve on graph
  • B
    Straight curve on graph
  • C
    Zig-zag curve on graph
  • D
    Spiral curve on graph
✓

Answer

Correct option: A.
$‘S’ $ shaped curve on graph
a
(a)The rate of growth varies in different species and different organs. The mathematical curve which represents variation in growth rate is some what flattened $S-$ shaped curve or sigmoid curve.

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