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The detritus food chain begins with:...

The detritus food chain begins with:

A

Primary producers

B

Primary consumer

C

Secondary consumers

D

Dead organic matter

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The correct Answer is:
D
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Assertion: Detritus food chain begins with decomposers. Reason: Detrivores, like fungi and bacteria, are major decomposers in such food chains.

Detritus food chain begins from

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How many of the following statements is /are correct about food chains ? (1 ) GFC is the major conduit of energy flow in an aquatic ecosystem. (2) Source of energy in the detritus food chain is not directly the sun (3) Detritus food chain may be connected to grazing food chain somewhere . (4) In a grazing food chain, the size of organisms always decreases at higher levels.

(a) What is a trophic level in an ecosystem ? What is 'standing crop' with reference to it? (b) Explain the role of the 'first trophic level' in an ecosystem. (c) How is the detritus food chain connected with the grazing food chain in a natural ecosystem ?

Assertion: In Terrestrial, ecosystem much larger fraction of energy flows through the detritus food chain Reason: In an aquatic ecosystem. GFC is the major condult for energy flow.

ERRORLESS -ECOSYSTEM : STRUCTURE AND FUNCTION 1549-Ecosystem : Structure And Function
  1. Energy and nutrients enter a community through:

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  2. Which of the following is an example of man-made ecosystem?

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  3. The detritus food chain begins with:

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  4. Bacteria and fungi in a forest ecosystem are generally OR Micro-or...

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  5. Energy flow and energy transormations in living systems stricly confor...

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  6. An ecosystem which can be easily damaged but can recover after some ti...

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  7. These belong to the category of primary consumers:

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  8. Given below is one of the types of ecological pyramids. This type repr...

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  9. A man-made ecosystem is:

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  10. Which of the following supports a dense population of plankton and lit...

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  11. The pyramid of numbers of a parasitic food chain in a forest ecosystem...

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  12. Y-shaped energy flow model was given by

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  13. Food chain is a series of population which starts with producers. It i...

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  14. Which of the food chains directly depends on solar radiations

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  15. Inverted pyramid is found in:

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  16. Earthworm is a

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  17. The trophic level of Cuscuta, Orobanche and Albygo is

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  18. In a particular climatic condition, decomposition rate is slower if:

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  19. The maximum biomass of living diatoms is to be found in

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  20. When spontaneous process occurs then free energy of a system

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