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