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STD 11 - 3. Plant kingdom — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 3. Plant kingdom1 Mark
MCQ
Coralloid roots of Cycas are useful in
  • ✓
    $N_2$-fixation
  • B
    Absorption
  • C
    Transpiration
  • D
    Fixation
✓

Answer

Correct option: A.
$N_2$-fixation
a
(a)Anabaena, Nostoc and bacteria are found in coralloid roots hence it helps in fixation absorption of nitrogen.

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