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The primary producers of the deep-sea hy...

The primary producers of the deep-sea hydrothermal vent ecosytem are

A

Green algae

B

Chemosynthetic bacteria

C

Blue - green algae

D

Coral reefs

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-ECOSYSTEM-Assignment (Section C)
  1. Which ecosystem has the maximum biomass ?

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  2. Presence of plants arranged into well defined vertical layers dependin...

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  3. The primary producers of the deep-sea hydrothermal vent ecosytem are

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  4. Which of the following would appear as the pioneer organisms on bare r...

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  5. Which one of the following is a characteristic feature of cropland eco...

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  6. The term ecosystem was coined by

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  7. Most animals that live in deep oceanic wa- ters are

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  8. In which of the following both pairs have correct combination?

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  9. During ecological succession

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  10. Vertical distribution of different species occupying different levels ...

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  11. In an ecosystem the rate of production of organic matter during photos...

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  12. Secondary succession takes place on/in

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  13. The mass of living material at a trophic level at a particular time is...

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  14. Match the following and select the correct option :

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  15. Given below is a simplified model of phosphorus cycling in a terrestri...

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  16. If 20J of energy is trapped at producer level, then how much energy wi...

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  17. Natural reservoir of phosphorus is

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  18. Secondary productivity is rate of formation of new organic matter by

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  19. Which one of the following processes during decomposition is correctly...

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  20. Which one of the following is not a functional unit of an ecosystem

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