Total amount of energy trapped by green plants in food is called:
1.  Gross primary production
2.  Net primary production
3.  Standing crop
4.  Standing state

Subtopic:  Ecosystem Productivity |
 75%
From NCERT
AIPMT - 1998
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Percentage of energy transferred to the higher tropic level in a food chain is:
1.  1%
2.  10%
3.  90%
4.  100%

Subtopic:  Energy Flow |
 93%
From NCERT
AIPMT - 1999
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Maximum photosynthesis is done by:
1.  Phytoplankton
2.  Zooplankton
3.  Marsh plants
4.  Woody plants

Subtopic:  Ecosystem Productivity |
 66%
AIPMT - 1999
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Which is the reason for the highest biomass in an aquatic ecosystem:

1. Nano plankton, blue-green algae, green algae

2. Seagrass, and slime molds

3. Benthonic and brown algae

4. Diatoms

Subtopic:  Ecosystem Productivity |
AIPMT - 2000
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What is true for photolithograph:
 

1. Obtain energy from radiations and hydrogen from organic compounds
2. Obtain energy from radiations and hydrogen from inorganic compounds
3. Obtain energy from organic compounds
4. Obtain energy from inorganic compounds
Subtopic:  Community Character |
 56%
AIPMT - 2001
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Plants are decomposed by: 
1.  Monera and fungi
2.  Fungi and plants
3.  Protista and Animalia
4.  Anibalia and Mogna

Subtopic:  Decomposition |
 84%
AIPMT - 2001
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If a bamboo plant is growing in a far forest then what will its trophic level be:

1. First trophic level (T1)

2. Second trophic level (T2)

3. Third trophic level (T3)

4. Fourth trophic level (T4)

Subtopic:  Ecological Flow |
 88%
From NCERT
AIPMT - 2002
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Which of the following is expected to have the highest value (gm/m2 /yr) in a grassland ecosystem: 

1. Tertiary production

2. Gross production (GP)

3. Net production (NP)

4. Secondary production 

Subtopic:  Ecosystem Productivity |
 81%
From NCERT
AIPMT - 2004
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