251.
Which of the following type of sex organs are found in Funaria
A
Projecting and sessile
B
Projective and stalked
C
Embedded & sessile
D
Embedded & Stalked
Answer :
Projective and stalked
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252.
Resin and trupentine are obtained form
A
Cycas
B
Pinus
C
Cedrus
D
Gnetum
Answer :
Pinus
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253.
In pinus, the third of embryonal cells from below is known as
A
Rosette tier
B
Suspensor tier
C
Embyonal tier
D
Free-nuclear tier
Answer :
Rosette tier
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254.
Selaginella and Salvinia are considered to represent a significant step towards evolution of seed habit because:
A
female gametophyte is free and gets dispersed like seeds
B
female gametophyte lacks archaegonia
C
megaspores possess endosperm and embryo surrounded by seed coat
D
embryo develops in female gametophyte which is retained on parent sporophyte
Answer :
embryo develops in female gametophyte which is retained on parent sporophyte
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255.
Resin and turpentine are obtained from
A
Cycas
B
Pinus
C
Cedrus
D
Abies
Answer :
Pinus
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256.
Pteridium phloem lacks
A
Sieve cell
B
Companion cell
C
Phloem parenchyma
D
All of the above
Answer :
Companion cell
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257.
Red colour of sea may be due to
A
Red algae
B
Trichodesmium
C
Gonyaulax
D
All of the above
Answer :
All of the above
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258.
Bryophyta are ecologically important plants as they are
A
Best producer in nature
B
Pioneer in succession on barren lands
C
Decomposers
D
Nitrifying plants
Answer :
Pioneer in succession on barren lands
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259.
Dispersal of spores in Funaria
A
By bursting of the capsule
B
Throgh peristome
C
Death & decay of operculum
D
By bursting of operculum
Answer :
Throgh peristome
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260.
Female sex organ of algae is called
A
Carpel
B
Oogonium
C
Archegonia
D
Oosphere
Answer :
Oogonium
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