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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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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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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NEET 2023 - Target Batch - Aryan Raj Singh
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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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NEET 2023 - Target Batch - Aryan Raj Singh

Of the total incident solar radiation, proportion of PAR is:
1.  about 60%
2.  about 50%
3.  more than 80%
4.  about 70%
Subtopic:  Energy Flow |
 89%
From NCERT
AIPMT - 2011
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem?

1. Phytoplankton

2. Fish

3. Zooplankton

4. Frog

Subtopic:  Energy Flow | Ecological Pyramids |
 60%
AIPMT - 2009
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Hints

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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