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College Biology Placement Tests: Certification Test 1598

Support in Plants MCQs App Download & PDF e-Book - 1598

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MCQ: 1598

An organic substance which hardens the secondary cell wall is usually impregnated with

  1. xylem
  2. phloem
  3. sclereides
  4. lignin

Support in Plants Placement Tests: College Biology App & eBook MCQs

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Support in Plants MCQs App (iOS & Android)

Support in Plants MCQs App

College Biology MCQs App (Android & iOS)

College Biology MCQs App

O Level Biology MCQs App (Android & iOS)

O Level Biology MCQs App

Phylum MCQs App (Android & iOS)

Phylum MCQs App