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    2.

    A taxon is a

    A

    Group of related families

    B

    Group of related species

    C

    Type of living organism

    D

    Taxonomic group of any ranking

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    5.

    Species are consider as

    A

    Artificial concept of human mind which cannot be defined in absolute terms

    B

    Real units of classification devised by taxonomists

    C

    Real basic units of classification

    D

    The lowest units of classification

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    8.

    Key is

    A

    A type of educational institute

    B

    A from of herbaria

    C

    Taxonomic category

    D

    A taxonomical aid used for identifying various organisms

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    9.

    Polyphyletic groups are problematic in taxonomy because they:

    A

    Include all descendants of a common ancestor.

    B

    Include the most recent common ancestor and all its descendants.

    C

    Do not include the most recent common ancestor of all members.

    D

    Represent a single evolutionary lineage.

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