Hais

Question 1

920

Question 2

3

Question 3

2019

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-

Question 5

-

Question 6

1

Question 7

2019

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-

Question 9

-

Question 10

Introduction

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• Our understanding of the plant kingdom has changed over time.

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Fungi and members of the Monera and Protista having cell walls

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were included in Plantae in the earlier classifications.

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• The kingdom-Plantae now includes algae

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bryophytes

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pteridophytes

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gymnosperms and angiosperms. Fungi

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Protista have been excluded from this kingdom.

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• The earliest classification system took only a few vegetative

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characteristics into account for classifying plants. Modern

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taxonomic studies are more detailed and take into account

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different morphological

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reproductive

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• All of these led to the development of various systems of plant

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classification. These are as follows

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Artificial System of Classification

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It was given by Linnaeus and based on morphological characters

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such as habit

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colour

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gave more importance to vegetative characters or on the

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androecium structure.

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Natural System of Classification

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It was developed by George Bentham and Joseph Dalton Hooker

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and based on natural affinities among the organisms. It was based

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on both external and internal features like anatomy

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ultrastructure

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embryology and phytochemistry. It is the most common system of

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classification followed.