Dimorphic leaves are characteristic of
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Coralloid roots of Cycas are
The ovuliferous scales of pine cone are comparable to
Which of the following statements is not true of Pinus ?
In Pinus, pollination takes place with the help of
Algal zone is characteristic of
Cycas is said to be a living fossil because
Perisperm is remnants of
Which of the following orders resembles much more to angiosperms ?
Cycas and Dryopteris resemble each other in the presence of
Sago-grains are chiefly obtained from
Which algae are commonly found in coralloid roots of Cycas ?
Which of the following plants bears seeds but not fruits ?
Non-porous wood occurs in
Winged seeds are found in
Female cone is absent in
Fertilization in gymnosperms is
Transfusion tissue is seen in leaves of
Neck canal cells are absent in
Mucilage canals of Cycas stem are
phloem of gymnosperms is devoid of
Monoxylic wood consists of
Coralloid roots are found in :
Endosperm in gymnosperms is formed
Which of the following is a living fossil ?
Pittus is a gymnosperm as it has
Sulphur shower is related to
In Cycas, archegonium has following number of neck canal cells:
Dwarf shoots of Pinus species have
Which of the following is not a characteristic feature of Cycas ?
Each stamen in Cycas is a representation of
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