Which one of the following is a characteristic feature of a cropland ecosystem?
1. Least genetic diversity
2. The absence of weeds
3. Ecological succession
4. The absence of soil organisms

Subtopic:  Introduction |
 60%
NEET - 2016
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NEET 2023 - Target Batch - Aryan Raj Singh
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The term ecosystem was coined by:
1. A.G. Tansley 2. E. Haeckel
3. E. warming 4. E.P. Odum
Subtopic:  Introduction |
 85%
NEET - 2016
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Presence of plants arranged into well-defined vertical layers depending on their height can be seen best in:

1. Tropical Rain Forest

2. Grassland

3. Temperate Forest

4. Tropical Savannah

Subtopic:  Components & Types of Ecosystems |
 81%
NEET - 2017
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Which ecosystem has the maximum biomass?

1. Grassland ecosystem

2. Pond ecosystem

3. Lake ecosystem

4. Forest ecosystem

Subtopic:  Ecosystem Productivity |
 71%
NEET - 2017
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The primary producers of the deep-sea hydrothermal vent ecosystem are:

1.green algae2.chemosynthetic bacteria
3.blue-green algae4.coral reefs

Subtopic:  Energy Flow |
 77%
NEET - 2016
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What type of ecological pyramid would be obtained with the following data? 

Secondary consumer: 120 g 

Primary consumer: 60 g 

Primary producer: 10 g

1. Inverted pyramid of biomass

2. Pyramid of energy

3. Upright pyramid of numbers

4. Upright pyramid of biomass

Subtopic:  Ecological Pyramids |
 85%
From NCERT
NEET - 2018
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NEET 2023 - Target Batch - Aryan Raj Singh