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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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 |
 76%
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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The term ecosystem was coined by:
1. A.G. Tansley 2. E. Haeckel
3. E. warming 4. E.P. Odum
Subtopic:  Introduction |
 84%
NEET - 2016
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In which of the following, do both pairs have the correct combination?

1. Gaseous nutrient cycle
Sedimentary nutrient cycle
Carbon and nitrogen
Sulphur and phosphorous
2. Gaseous nutrient cycle
Sedimentary nutrient cycle
Carbon and sulphur
Nitrogen and phosphorus
3. Gaseous nutrient cycle
Sedimentary nutrient cycle 
Nitrogen and sulphur
Carbon and phosphorous
4. Gaseous nutrient cycle
Sedimentary nutrient cycle
Sulphur and phosphorous
Carbon and nitrogen
Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 91%
From NCERT
NEET - 2015
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In an ecosystem, the rate of production of organic matter during photosynthesis is termed as:

1. net primary productivity

2. gross primary productivity

3. secondary productivity

4. net productivity

Subtopic:  Ecosystem Productivity |
 80%
From NCERT
NEET - 2015
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Most animals are tree dwellers in a:

1. coniferous forest
2. thorn woodland
3. temperate deciduous forest
4. tropical rainforest

Subtopic:  Components & Types of Ecosystems |
 68%
NEET - 2015
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Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks. 

A B C D
1. Rock minerals Detritus Litter fall Producers
2. Litter Producers Rock minerals Detritus
3. Detritus Rock minerals Producers Litter fall
4 Producers Litter fall Rock minerals Detritus
Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 85%
From NCERT
AIPMT - 2014
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If 20 J of energy is trapped at the producer level, then how much energy will be available to peacocks as food in the following chain? 
Plant → mice → snake → peacock

1. 0.02 J 2. 0.002 J
3. 0.2 J 4. 0.0002 J
Subtopic:  Ecological Pyramids |
 76%
From NCERT
AIPMT - 2014
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Pheretima and its close relatives derive nourishment from:

1. Sugarcane roots

2. Decaying fallen leaves and soil organic matter

3. Soil insects

4. Small pieces of fresh fallen leaves of maize

Subtopic:  Decomposition |
 88%
From NCERT
AIPMT - 2012
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