water
wind
insects
animals
B. wind
Pinus
Mango
Dalbergia
Ficus
Oscillatoria and Nostoc
Nostoc and Rivularia
Nostoc and A rmbaena
All of these
4
3
2
0
scales
pistils
stamens
petals
outer integument
endosperm
funiculus
nucellus
vessels only
tracheitis only
equal number of both
more of tracheids and less of vessels
Selaginella
Pinus
Cycas
Funaria
naked ovules
vessels
vascular tissue
none of these
Cycas
Pinus
Taxus
None of these
at the time of fertilization
before fertilization
after fertilization
before or after fertilization
Bryophyfces
Pteridophyfees
Gymnosperms
None of these
Dryopteris
Grtetum
Pinus
Cycas
it is found only in China
it looks like a fern tree
it has ciliated sperms
it also occurs as a fossil
Cycas species
Pinus species
Papaver species
None of these
microsporophyll
microsporangium
megasporophyll
megasporangium
one
two
three
four
Cycas
Pinus
Both (a) and (b)
None of these
closed, conjoint parallel vascular bundles
open, conjoint parallel vascular bundles
open, separate parallel vascular bundles
open, conjoint collateral vascular bundles
water
wind
insects
animals
Pinus
Cycas
Sequoia
Selaginella
cambium
cliliated sperms
seeds
flowers
isogamous
double
oogamous
siphonogamous
Coniferales
Gnetales
Cycadales
Both (a) and (b)
Pirtus
Selaginella
Cycas
Funaria
sieve tubes
companion cells
pohloem parenchyma
none of these
Ginkgo biloba
Pinus gerardiane
Cycas revoluta
None of these
roots of Pinus
normal roots of Cycas
coralloid roots of Cycas
stems of Pinus
Presence of ovuliferous scale
Embryo with two cotyledons
Resin canals in needles
Tracheids with bordered pits
Dryopteris
Cycas
Pinus
Both (b) and (c)
1-4 leaves
2-5 leaves
2-4 leaves
1-5 leaves