1.

    The heterosporous nature of Selaginella is considered an evolutionary advancement because it:

    A

    Leads to the development of seeds

    B

    Increases the number of spores produced

    C

    Allows for asexual reproduction

    D

    Simplifies the gametophyte generation

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    3.

    Which is not a characteristic of plant cell walls?

    A

    Found only in the sporophyte phase of life cycle

    B

    Among other compounds contains compounds built of simple sugars

    C

    May contain enzymes that are biologically active

    D

    Often contain strengthening polymers

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