1.

    Which of the following combinations of characters is unique to the phylum Chordata?

    A

    Bilateral symmetry, triploblastic, coelomate

    B

    Notochord, dorsal hollow nerve cord, pharyngeal gill slits, post-anal tail

    C

    Closed circulatory system, segmented body, jointed appendages

    D

    Radial symmetry, diploblastic, acoelomate

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    2.

    ICBN stands for

    A

    International Code of Botanical Nomenclature

    B

    International Classification of Biological Names

    C

    International Congress of Biological Nomenclature

    D

    International Code of Biological Naming

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    5.

    Phenetic classification of organism is based on

    A

    Observable characteristics of existing organisms

    B

    The ancestral lineage of existing organism

    C

    Dendrogram based on DNA characteristics

    D

    Sexual characteristics

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