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