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What is the sequence of ecological hierarchy starting from lower to higher level?

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Important Questions on Organisms and Populations

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Biology>Ecology>Organisms and Populations>Organism and its Environment
Which one of the following is an abiotic resource?
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Biology>Ecology>Organisms and Populations>Organism and its Environment
Air pollution has harmful effects on which of the following? 
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Biology>Ecology>Organisms and Populations>Organism and its Environment
Aerenchyma is present in:
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Biology>Ecology>Organisms and Populations>Organism and its Environment
What are the surroundings in which organisms live called?
HARD
Biology>Ecology>Organisms and Populations>Organism and its Environment
What is the size of animals belonging to mesofauna?
MEDIUM
Biology>Ecology>Organisms and Populations>Organism and its Environment
Clove is a:
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Biology>Ecology>Organisms and Populations>Organism and its Environment
A biome is:
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Biology>Ecology>Organisms and Populations>Organism and its Environment
The term Ecology was coined by ___.
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Biology>Ecology>Organisms and Populations>Organism and its Environment

Mention the population interactions that exist among the following:

Abingdon tortoise and goats in Galapagos islands.

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Biology>Ecology>Organisms and Populations>Organism and its Environment

The percentage of nitrogen in the air is about:

1. 74%
2. 76% 
3. 78% 
4. 80%

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Biology>Ecology>Organisms and Populations>Organism and its Environment
Which one of the following is not among the three R's to save the environment?
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Biology>Ecology>Organisms and Populations>Organism and its Environment
Define Niche.
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Biology>Ecology>Organisms and Populations>Organism and its Environment
An example of an abiotic component of the environment is _____.
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Biology>Ecology>Organisms and Populations>Organism and its Environment
The smallest unit of classification is:
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Biology>Ecology>Organisms and Populations>Organism and its Environment
Which one of the following is not a good source of nutrition calcium?
MEDIUM
Biology>Ecology>Organisms and Populations>Organism and its Environment
'Kiribath' is a rice dish from _____.
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Biology>Ecology>Organisms and Populations>Organism and its Environment
In biological terms, _____ is a relationship between to organisms in which one organism benefits and the other is unaffected.
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Biology>Ecology>Organisms and Populations>Organism and its Environment
Which continent the Giraffe is native to?
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Biology>Ecology>Organisms and Populations>Organism and its Environment
What is ecologice niche? Give an example.
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Biology>Ecology>Organisms and Populations>Organism and its Environment
Assertion (A): Landscape is the unit of land containing different ecosystems surrounded by natural boundaries.
Reason (R): Landscape is the level of organization that is higher than the ecosystem.