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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The breakdown of detritus into smaller particles by earthworm is a process called:
1. Catabolism
2. Humification
3. Fragmentation
4. Mineralisation

Subtopic:  Decomposition |
 92%
From NCERT
AIPMT - 2011
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Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time?

1. Frog 

2. Sparrow

3. Lion 

4. Goat

Subtopic:  Ecological Flow |
 81%
From NCERT
AIPMT - 2011
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NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following representations shows the pyramid of numbers in a forest ecosystem?

 

1.  A 2.  B
3.  C 4.  D

Subtopic:  Ecological Pyramids |
AIPMT - 2010
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Identify the likely organisms (a), (b), (c), and (d) in the food web shown below:

  

(a)

(b)

(c)

(d)

1.

Dog

Squirrel

Bat

Deer

2.

Rat

Dog

Tortoise

Crow

3.

Squirrel

Cat

Rat

Pigeon

4.

Deer

Rabbit

Frog

Rat

Subtopic:  Energy Flow |
 84%
AIPMT - 2012
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The rate of formation of new organic matter by rabbits in grassland is called: 

1. Secondary productivity 

2. Net primary productivity 

3. Gross primary productivity 

4. Net productivity 

Subtopic:  Ecosystem Productivity |
 78%
From NCERT
AIPMT - 2012
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Which one of the following is not used for the construction of ecological pyramids?

1. Dry weight 2. Number of individuals
3. Rate of energy  4. Fresh weight
Subtopic:  Ecological Pyramids |
 70%
From NCERT
AIPMT - 2006
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NEET 2023 - Target Batch - Aryan Raj Singh

Quercus species are the dominant component in:

1. temperate deciduous forests
2. alpine forests
3. scrub forests
4. tropical rain forests
Subtopic:  Components & Types of Ecosystems |
 51%
AIPMT - 2008
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Consider the following statements concerning food chains.
 
(A) removal of 80% of tigers from an area resulted in greatly increased growth of vegetation
(B) removal of most of the carnivores resulted in an increased population of deer
(C) the length of food chains is generally limited to 3-4 trophic levels due to energy
(D) the length of food chains may vary from 2 to 8 trophic levels 

Which two of the above statements are correct?

1. B and C

2. C and D

3. A and D

4. A and B

Subtopic:  Energy Flow |
 82%
AIPMT - 2008
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NEET 2023 - Target Batch - Aryan Raj Singh
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