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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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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Links
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Identify the possible link A in the following food chain.
Green plantInsectFrogAEagle

1. Rabbit

2. Wolf

3. Cobra

4. Parrot

Subtopic:  Energy Flow |
 89%
AIPMT - 2012
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Given below is an imaginary pyramid of numbers. What could be one of the possibilities about certain organisms at some of the different levels? 

1. Level PC is insects and level SC is small insectivorous birds
2. Level PP is phytoplanktons in the sea and Whale on top-level TC
3. Level PP is pipal trees and the level SC is sheep
4. Level PC is rats and level SC is cats


 

Subtopic:  Ecological Pyramids |
 54%
AIPMT - 2012
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Which one of the following is not a functional unit of an ecosystem?

1. Energy flow

2. Decomposition

3. Productivity

4. Stratification

Subtopic:  Components & Types of Ecosystems |
 87%
From NCERT
AIPMT - 2012
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The upright pyramid of number is absent in:

1. Pond

2. Forest

3. Lake

4. Grassland

Subtopic:  Ecological Pyramids |
 50%
AIPMT - 2012
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Which one of the following statements for a pyramid of energy is incorrect, whereas the remaining three are correct?
1. It shows the energy content of different trophic-level organisms
2. It is inverted in shape
3. It is upright in shape
4. Its base is broad
Subtopic:  Ecological Pyramids |
 88%
From NCERT
AIPMT - 2011
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NEET 2023 - Target Batch - Aryan Raj Singh

Large woody vines are more commonly found in:

1.  mangroves

2.  tropical rainforests

3.  alpine forests

4.  temperate forests

Subtopic:  Components & Types of Ecosystems |
 70%
AIPMT - 2011
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Mass of living matter at a tropic level in an area at any time is called:
1. Detritus 2. Humus
3. Standing state 4. Standing crop
Subtopic:  Energy Flow | Ecological Pyramids |
 85%
From NCERT
AIPMT - 2011
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh