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Biology - General Knowledge Objective Questions

86

Respiratory quotient (RQ) is one in case of :

A.

Fatty acids

B.

Nucleic acids

C.

Carbohydrates

D.

Organic acids

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Correct answer is : C
Explanation

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87

An example of free living nitrogen fixing aerobic bacteria is :

A.

Clostridium

B.

Rhizobium

C.

Azotobacter

D.

Rhodospirillum

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Correct answer is : C
Explanation

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88

Identify the plant belonging to the Reed-Swamp stage in hydrarch succession :

A.

Juncus

B.

Sagittaria

C.

Salix

D.

Trapa

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Correct answer is : B
Explanation

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89

A gas produced by paddy fields and connected with global warming is : 

A.

CO2

B.

Chlorine

C.

H2S

D.

Methane

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Correct answer is : D
Explanation

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90

If the strong partner is benefited and the weak partner is damaged, it is known as :

A.

Predation

B.

Allelopathy

C.

Symbiosis

D.

Commensalism

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Correct answer is : A
Explanation

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