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Biology Test 239

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Biology Test 239
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  • Question 1
    4 / -1

    One of the main evolutionary features of alternation of generations from algae to flowering plants is

  • Question 2
    4 / -1

    Sterile jacket around the sex organs is found in

  • Question 3
    4 / -1

    Pteridophytes differ from bryophytes in having

    Solution

    Bryophytes are embryophytes that are non-vascular i.e., they have no xylem and phloem. Pteridophytes are vascular plants i.e., plants with xylem and phloem, that reproduce and disperse via spores.

    The dominant phase in bryophyte is gametophyte while the dominant phase in pteridophyte is sporophyte. Bryophytes have no true roots while pteridophyte have true roots. Bryophytes have no vascular tissues while pteridophytes have vascular tissues.

    Therefore, the correct answer is option D.

     

     

  • Question 4
    4 / -1

    In which of the following groups would you place a plant which produces spores, has vascular tissue and seeds but lack flowers ?

  • Question 5
    4 / -1

    A unipinnate compound leaf looks very much like an ordinary branch with simple leaves. It can be differentiated from the branch in the following way

  • Question 6
    4 / -1

    Petioles are modified into tendril in

  • Question 7
    4 / -1

    Ginger is a stem and root because

  • Question 8
    4 / -1

    Cuscuta is a

  • Question 9
    4 / -1

    Velamen is a tissue found in

  • Question 10
    4 / -1

    The graviperception (geotropic response) of root is due to starch grains (statoliths) in

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