81.
Which of the following is not true for a species
A
Variations occur among members of a species
B
Gene flow does not occur between the populations of a species
C
Each species is reproductively isolated from every other species
D
Members of a species can interbreed
Answer :
Gene flow does not occur between the populations of a species
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82.
The contrasting characteristics generally in a pair used for identification of animals in Taxonomic Key are referred to as :
A
Alternate
B
Lead
C
Couplet
D
Doublet
Answer :
Couplet
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The keys are based on the set of contrasting characters in pair known as couplet.
83.
The cell of the bacterium streptococcus remain arranged in the form of
A
Chain
B
Irregular cluster
C
Cube
D
Plate
Answer :
Chain
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84.
Blue green algae is found in
A
Riccia
B
Pinus root
C
Cycas root
D
Scales of Marchantia
Answer :
Cycas root
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85.
Which one causes water bloom
A
Red algae
B
Fungi
C
Green algae
D
Fern
Answer :
Green algae
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86.
80% of the living material of a cell is made of
A
Minerals
B
Proteins
C
Water
D
Fats
Answer :
Water
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87.
Scientific name of Mango plant is Mangifera indica (Linn.) Santapau in the above name Santapau refers to
A
Variety of Mango
B
A taxonomist who proposed the present nomenclature in honour of linnaeus
C
A scientist who for the first time described Mango plant
D
A scientist who changed the name proposed by Linnaeus and proposed present name
Answer :
A scientist who changed the name proposed by Linnaeus and proposed present name
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88.
On which day we celebrate malarial day
A
5th June
B
15th August
C
20th October
D
Spencer
Answer :
20th October
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89.
What is true for individuals of same species?
A
Live in same niche
B
Live in same habitat
C
Interbreeding
D
Live in different habitat
Answer :
Interbreeding
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Individuals of the same species can interbreed. No two individuals share the same ecological niche.
90.
Fungi in a forest ecosystem is
A
Producer
B
Decomposer
C
Top consumer
D
Autotroph
Answer :
Decomposer
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