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Identify the possible link 'A' in the following food chain

Plant ➔ Insect ➔ Frog ➔ 'A' ➔ Eagle

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Important Questions on Ecosystem: Structure and Function

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NTA Errorless Biology Volume-2>Chapter 18 - Ecosystem: Structure and Function>Ordinary Thinking>Q 123
If forest area is reduced to half, which one of the following will be a long term effect
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NTA Errorless Biology Volume-2>Chapter 18 - Ecosystem: Structure and Function>Ordinary Thinking>Q 124
The first link in any food chain is always a green plant because
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NTA Errorless Biology Volume-2>Chapter 18 - Ecosystem: Structure and Function>Ordinary Thinking>Q 125
Food levels in an ecosystem are called
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NTA Errorless Biology Volume-2>Chapter 18 - Ecosystem: Structure and Function>Ordinary Thinking>Q 126
A food chain consists of
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NTA Errorless Biology Volume-2>Chapter 18 - Ecosystem: Structure and Function>Ordinary Thinking>Q 127
In a stable ecosystem, which of the following limits the number of trophic levels
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NTA Errorless Biology Volume-2>Chapter 18 - Ecosystem: Structure and Function>Ordinary Thinking>Q 128

Which of the following ecosystem has the highest gross primary productivity

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Among the ecosystem mentioned below where can one find maximum biodiversity

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NTA Errorless Biology Volume-2>Chapter 18 - Ecosystem: Structure and Function>Ordinary Thinking>Q 129
Biological equilibrium is found among the:
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NTA Errorless Biology Volume-2>Chapter 18 - Ecosystem: Structure and Function>Ordinary Thinking>Q 130
The food chain in which microbes split energy rich compounds of the producer community is