Circinate venation of foliage leaves
Presence of armed parenchyma
Presence of motile sperm
Absence of vessels in the xylem
B. Presence of armed parenchyma
sieve tubes
companion cells
pohloem parenchyma
none of these
it is found only in China
it looks like a fern tree
it has ciliated sperms
it also occurs as a fossil
water
wind
insects
animals
Pirtus
Selaginella
Cycas
Funaria
microsporophyll
microsporangium
megasporophyll
megasporangium
Ginkgo biloba
Pinus gerardiane
Cycas revoluta
None of these
compact wood
soft-loose wood
compact wood with abundant parenchyma
soft-loose wood with abundant parenchyma
cambium
cliliated sperms
seeds
flowers
1-4 leaves
2-5 leaves
2-4 leaves
1-5 leaves
Ephedra
Cycas
Pinus
Selaginella
isogamous
double
oogamous
siphonogamous
Selaginella
Pinus
Cycas
Funaria
vessels only
tracheitis only
equal number of both
more of tracheids and less of vessels
Oscillatoria and Nostoc
Nostoc and Rivularia
Nostoc and A rmbaena
All of these
scales
pistils
stamens
petals
Dryopteris
Cycas
Pinus
Both (b) and (c)
closed, conjoint parallel vascular bundles
open, conjoint parallel vascular bundles
open, separate parallel vascular bundles
open, conjoint collateral vascular bundles
one
two
three
four
positively geotropic
apogeotropic
phototropic
chemotropic
Cycas species
Pinus species
Papaver species
None of these
Dryopteris
Grtetum
Pinus
Cycas
Presence of ovuliferous scale
Embryo with two cotyledons
Resin canals in needles
Tracheids with bordered pits
4
3
2
0
roots of Pinus
normal roots of Cycas
coralloid roots of Cycas
stems of Pinus
Bryophyfces
Pteridophyfees
Gymnosperms
None of these
Coniferales
Gnetales
Cycadales
Both (a) and (b)
Cycas
Pinus
Both (a) and (b)
None of these
outer integument
endosperm
funiculus
nucellus
integument and nucellus
ovuliferous scale and integument
carpellary and ovuliferous scale
bract scale and integumnet
schizogenous
lysogenous
schizolysogenous
none of these