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Tamil Nadu Board of Secondary EducationHSC Science Class 11

HSC Science Class 11 - Tamil Nadu Board of Secondary Education Question Bank Solutions

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Vexillary aestivation is characteristic of the family ______.

[4] Reproductive Morphology
Chapter: [4] Reproductive Morphology
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Phylogenetic classification is the most favoured classification because it reflects ______.

[5] Taxonomy and Systematic Botany
Chapter: [5] Taxonomy and Systematic Botany
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State the protoplasm theory.

[6] Cell: the Unit of Life
Chapter: [6] Cell: the Unit of Life
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When the plants shed their leaves how do they respire?

[10] Secondary Growth
Chapter: [10] Secondary Growth
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There are many tissues produced outside the vascular cambium in the stem. Explain them

[10] Secondary Growth
Chapter: [10] Secondary Growth
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What is plasticity?

[11] Transport in Plants
Chapter: [11] Transport in Plants
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What are the physiological effects of plants facing drought conditions?

[15] Plant Growth and Development
Chapter: [15] Plant Growth and Development
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Identify the Archaebacterium

[1] Living World
Chapter: [1] Living World
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The correct statement regarding Blue green algae is ________.

[1] Living World
Chapter: [1] Living World
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Why do farmers plant leguminous crops in crop rotations/mixed cropping?

[1] Living World
Chapter: [1] Living World
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Which of the plant group has gametophyte as a dominant phase?

[2] Plant Kingdom
Chapter: [2] Plant Kingdom
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Do you agree with the statement ‘Bryophytes need water for fertilization’? Justify your answer.

[2] Plant Kingdom
Chapter: [2] Plant Kingdom
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Distinguish between prokaryotes and eukaryotes.

[6] Cell: the Unit of Life
Chapter: [6] Cell: the Unit of Life
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Identify the incorrect statement about the Gram positive bacteria

[1] Living World
Chapter: [1] Living World
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Identify the correctly matched pair

[1] Living World
Chapter: [1] Living World
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Difference between Gram-positive and Gram-negative bacteria

[1] Living World
Chapter: [1] Living World
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What are elaters?

[2] Plant Kingdom
Chapter: [2] Plant Kingdom
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What is wood botanically?

[10] Secondary Growth
Chapter: [10] Secondary Growth
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Explain the internal structure of Cycas rachis.

[2] Plant Kingdom
Chapter: [2] Plant Kingdom
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When you go to a timber mart to collect timber for your construction of a new house, how will you select good timber?

[10] Secondary Growth
Chapter: [10] Secondary Growth
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