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71.
The causative agent of bird flu is a
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A.
Virus
B.
Bacteria
C.
Fungus
D.
Protozoan
E.
Ricketsia

72.
In lower plants like mosses, the structure which performs the functions of roots of higher plants is called
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A.
root hairs
B.
rootlets
C.
hyphae
D.
rhizoids
E.
thalli.

73.
One common feature of fungi, algae, mosses and ferns is that they are
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A.
photosynthetic
B.
show alternation of generation
C.
can survive harsh weather conditions
D.
have no seeds
E.
conjugate

74.
The following are major groups of the plant kingdom EXCEPT
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A.
Bryophyta
B.
Chlorophyta
C.
Pteridophyta
D.
Spermatophyta
E.
Thallophyta

75.
_____________is a form of sexual reproduction
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A.
Grafting
B.
Budding
C.
Fission
D.
Conjugation
E.
Regeneration

76.
Sexual reproduction in Spirogyra is called
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A.
Fertilization
B.
Symbiosis
C.
Conjugation
D.
Reproduction
E.
Mutualism

77.
The carrier of the hereditary characters in plants is the
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A.
Cell
B.
nucleus
C.
chromosome
D.
chloroplast
E.
gene

78.
All are necessary for photosynthesis except_____________
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A.
Water
B.
Chlorophyll
C.
Sunlight
D.
Carbon dioxide
E.
Oxygen

79.
Growing yam tendrils climb for support. This growth response is
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A.
haptotropism
B.
geotropism
C.
phototropism
D.
hydrotropism
E.
chemotropism.

80.
Which is the correct order in an evolutionary sequence for the following plant groups?
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A.
Bacteria → ferns → algae → mosses → seed plants.
B.
Bacteria → ferns → mosses → algae → seed plants.
C.
Bacteria → algae → mosses → ferns → seed plants.
D.
Bacteria → mosses → algae → ferns → seed plants.
E.
Seed plants → ferns → mosses → algae → bacteria.

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