Most animals that are in deep oceanic water are?

1. Primary consumers

2. Secondary consumers

3. Tertiary consumers

4. Detritivores

Subtopic:  Components & Types of Ecosystems |
 61%
NEET - 2015
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The vertical distribution of different species occupying different levels in a biotic community is known as:

1. divergence
2. stratification
3. zonation
4. pyramid

Subtopic:  Components & Types of Ecosystems |
 90%
From NCERT
NEET - 2015
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The mass of living material at a tropic level at a particular time is called:

1. gross primary productivity
2. standing state
3. net primary productivity
4. standing crop

Subtopic:  Ecosystem Productivity |
 74%
From NCERT
NEET - 2015
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NEET 2023 - Target Batch - Aryan Raj Singh

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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NEET 2023 - Target Batch - Aryan Raj Singh

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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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 |
 77%
From NCERT
AIPMT - 2014
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Which one of the following processes during decomposition is correctly described?

1. Humanification-Leads to the accumulation of a dark-coloured substance in humans which undergoes microbial action at a very fast rate
2. Catabolism-Last step decomposition under fully anaerobic condition
3. Leaching-Water soluble inorganic nutrients rise to the top layers of the soil
4. Fragmentation-Carried out by organisms such as earthworms

Subtopic:  Decomposition |
 78%
From NCERT
AIPMT - 2013
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Secondary productivity is the rate of formation of new organic matter by:

1. Parasite

2. Consumer

3. Decomposer

4. Producer

Subtopic:  Ecosystem Productivity |
 85%
From NCERT
AIPMT - 2013
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Which one of the following is a primary consumer in maize field ecosystem?
1. Grasshopper
2. Wolf
3. Phytoplankton
4. Lion
Subtopic:  Energy Flow |
 88%
NEET - 2013
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When a man eats fish which feeds on zooplankton which has eaten small plants, the producer in the chain is:
1. Small plants
2. Fish
3. Man
4. Zooplankton
Subtopic:  Ecological Flow |
 80%
From NCERT
NEET - 2013
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