The primary producers of the deep-sea hydrothermal vent ecosystem are
1. coral reefs
2. green algae
3. chemosynthetic bacteria
4.blue-green-algae

Subtopic:  Decomposition |
 67%

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Assertion: If decomposition stopped, life would cease.
Reason: Detritus would pile up and the ingredients needed to synthesize organic matter would be exhausted.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Decomposition |
 73%

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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 |
 93%
From NCERT
AIPMT - 2011

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Decomposers are   
1. Animalia and Monera
2. Protista and Animalia
3. Fungi and Plantae
4. Bacteria and Fungi

Subtopic:  Decomposition |
 91%
From NCERT
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