A leaf adapted to a warm dry climate is

1.  large and thin

2.  small and thin

3.  large and thick

4.  small and thick

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4
Correct Answer :

small and thick


Explanation :
No Explanation available for this question

Primary productivity of ecosystem refers to

1.  increase in primary consumers

2.  net production of primary producers

3.  CO2fixation of organic carbon

4.  increase in mortality of primary producers

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4
Correct Answer :

CO2fixation of organic carbon


Explanation :
No Explanation available for this question

The individuals in the uppermost ring pyramid represent the one with

1.  maximum number

2.  maximum biomass

3.  the ultimate consumer in the chain

4.  minimum biomass

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4
Correct Answer :

the ultimate consumer in the chain


Explanation :
No Explanation available for this question

A crocodile bird enters the mouth of crocodile and feeds on parasitic leeches. The bird gets food and crocodile gets rid of blood sucking leeches. Both the partners can live independently. Such an association is

1.  mutualism

2.  protocooperation

3.  Commensalism

4.  Amensalism

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4
Correct Answer :

protocooperation


Explanation :
No Explanation available for this question

An association of different interrelated populations belonging to different species in common environment which can survive in nature is called

1.  Biotic community

2.  Population

3.  Herd

4.  Family

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4
Correct Answer :

Biotic community


Explanation :
No Explanation available for this question

Plants growing well in hill crevices are

1.  Lithophytes

2.  Ermophytes

3.  Chasmophytes

4.  Psammophytes

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4
Correct Answer :

Chasmophytes


Explanation :
No Explanation available for this question

The first plants to appear on a badly burnt forest area will most probably be

1.  Mosses

2.  Liverworts

3.  Ferns

4.  Grasses

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4
Correct Answer :

Grasses


Explanation :
No Explanation available for this question

Perennial grass stage is represented by

1.  Aristida

2.  Heteropogon

3.  Poa

4.  Tortula

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4
Correct Answer :

Heteropogon


Explanation :
No Explanation available for this question

When the mimic attracts its prey, it is called

1.  warning mimicry

2.  alluring mimicry

3.  protective colouration

4.  camouflage

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4
Correct Answer :

alluring mimicry


Explanation :
No Explanation available for this question

The most effective defences of plants against the herbivores are

1.  Morphological

2.  Temporal

3.  Chemical

4.  Developmental

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4
Correct Answer :

Morphological


Explanation :
No Explanation available for this question
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