The term ecosystem was coined by :
1. E. Warming
2. E.P.Odum
3. A.G. Tansley
4. E. Haeckel

Subtopic:  Introduction |
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Niche is
1. all the biological factors in the organism's environment
2. the functional role played by the organism where it lives
3. the range of temperature that the organism needs to live
4. the physical space where an organism lives

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Presence of plants arranged into well-defined vertical layers depending on their height can be seen best in

1. Tropical Savannah
2. Tropical Rain Forest
3. Grassland
4. Temperate Forest

Subtopic:  Introduction |
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