Neck canal cells are absent in
None of these
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Non-porous wood occurs in
Each stamen in Cycas is a representation of
Which of the following is a living fossil ?
Sago-grains are chiefly obtained from
Which of the following plants bears seeds but not fruits ?
Winged seeds are found in
The wood of Cycas consists of
Which of the following orders resembles much more to angiosperms ?
Coralloid roots are found in :
Cycas and Dryopteris resemble each other in the presence of
The revoluta and circinalis are the species of
Monoxylic wood consists of
Algal zone is characteristic of
Mucilage canals of Cycas stem are
Which of the following is not a characteristic feature of Cycas ?
Cycas is said to be a living fossil because
The wing on the seed of Pinus develops from
In Pinus, pollination takes place with the help of
The number of integuments of Pinus is
Pittus is a gymnosperm as it has
Which of the following statements is not true of Pinus ?
Largest antherozoids are found in
The stem of Pinus plant has
Coralloid roots of Cycas are
Endosperm in gymnosperms is formed
In Cycas, archegonium has following number of neck canal cells:
Transfusion tissue is seen in leaves of
Sulphur shower is related to
Perisperm is remnants of
Dimorphic leaves are characteristic of
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