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