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Which of the following means was used by warblers to avoid competition and co-exist?

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Important Questions on Organisms and Populations

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The fitness of one species (measured in terms of r, the intrinsic rate of increase) is significantly lower in the presence of other species. This phenomenon is referred to as
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Interactions among organisms can have effects at which of the following levels?
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Thick layer of fat below the skin, called blubber that helps in reduction in loss of body heat is a characteristic feature of
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Adaptation in which organism matches its colour with surrounding to get protected from predators is called 
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Sexual deceit is employed by
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Read the following statements.

A: Some species of insects and frogs are cryptically coloured.

B: Some animals are distasteful due to certain chemicals in their bodies.

C: Some animals are poisonous.

The above adaptations are against:

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What percentage of all insects is known to be phytophagous?
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Population density means