91.
Zoodioama includes A
Gynosperms nd pteridophya
B
Dicots, monocots, gymnosperm
C
Bryophta and pteridophyta
D
Only thallophyta
Answer :
Bryophta and pteridophyta
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92.
A large number of unknown species of plants and animals re believed to the present in A
Temperate forests
B
Antarctica
C
Taiga
D
Tropical forest
Answer :
Tropical forest
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93.
If you are asked to classify the various algae into distinct groups, which of the following characters you should choose A
Chemical composition of the cell wall
B
Types of pigments present in the cell
C
Nature of stored food materials in the cell
D
Structural organization of thallus
Answer :
Types of pigments present in the cell
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94.
What is true for photolithotrops? A
Obtain energy from radiations and hydrogen from organic compounds
B
Obtain energy from radiations and hydrogen from inorganic compounds
C
Obtain energy from organic compounds
D
Obtain energy from inorganic compounds
Answer :
Obtain energy from radiations and hydrogen from inorganic compounds
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Photolithotrophs manufacture their own organic nutrients from inorganic raw materials $$\left( {{H_2},{O_2}} \right)$$ with the help of radiation energy.Note : Some examples of photolithotrophic bacteria are purple bacteria (e. g., Chromatiaceae), green bacteria (Chlorobiaceae and Chloroflexi) and Cyanobacteria. Purple and green bacteria oxidize sulfide, sulfur, sulfite, iron or hydrogen.
95.
Which of the following is a disease causing bacterium in human beings A
Escherichia coli
B
Xanthomonas citri
C
T.M.V.
D
Pilobolus
Answer :
Escherichia coli
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96.
The herbarium specimen on whose basis a new species is described for the first time is called as A
Syntype
B
Holotype
C
Pratype
D
Neotype
Answer :
Holotype
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97.
Species are considered as A
real units of classification devised by taxonomists
B
real basic units of classification
C
the lowest units of classification
D
artificial concept of human mind which cannot be defined in absolute terms
Answer :
the lowest units of classification
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Species is the lowest or basic taxonomic category comprising of one or more natural population of individuals that interbreed freely.
98.
Hemocyanin of snail consists of _________ amino acids A
910,000
B
8200
C
39
D
4500
Answer :
8200
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99.
In which plastids are not found A
Blue - green algae
B
Bacteria
C
Fungi
D
All of the above
Answer :
Fungi
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100.
Which of the following is known as pond silk A
Spirogyra
B
Ulothrix
C
Nostoc
D
Anabaena
Answer :
Spirogyra
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