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STD 12 - 12. ecosystem — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 12. ecosystem1 Mark
MCQ
What is common in earthworm, soil mites and dung beetle in an ecosystem?
  • ✓
    They all are detritivores
  • B
    Primary consumer
  • C
    Secondary consumer
  • D
    Tertiary consumer
✓

Answer

Correct option: A.
They all are detritivores
a
Some workers differentiate into two more categories of living beings amongst the biotic components of an ecosystem. These are detritivores and parasites. Parasites belong to diverse groups, $e \cdot g .$, bacteria, fungi, protozoans, worms, etc. Every type of living being can be attacked by parasites. Detrivores or scavengers are animals which feed on dead bodies of other organisms, $e . g .$, termites, carrion beetles. They are helpful in quick disposal of the dead bodies

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