1.

    The members of brown algae have

    A

    Chlorophyll-a, chlorophyll-b, xanthophylls

    B

    Chlorophyll-a, chlorophyll-c, xanthophylls and carotenoids

    C

    Fucoxanthin and xanthophylls

    D

    Chlorophyll-a and xanthophylls

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    2.

    The members of brown algae have

    A

    Chlorophyll-a, chlorophyll-b, xanthophylls

    B

    Chlorophyll-a, chlorophyll-c, xanthophylls and carotenoids

    C

    Fucoxanthin and xanthophylls

    D

    Chlorophyll-a and xanthophylls

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    9.

    The unique 'holdfast' structure in certain Phaeophyceae primarily serves what purpose in their challenging intertidal habitats?

    A

    Nutrient absorption from the surrounding water

    B

    Anchoring to the substrate against strong wave action

    C

    Photosynthesis by increasing surface area

    D

    Reproduction by producing motile spores

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