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Ecosystems — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems3 Marks
Question
Study the following diagram, and answer these questions:

  1. Why does a wide arrow point from both producers and consumers to decomposers?
  2. Why does a wide arrow point only from inorganic nutrient pool to producers?
  3. Why don't the wavy arrows point from decomposers to producers?
✓

Answer

  1. Both producers and consumers die and decompose.
  2. Only producers use inorganic nutrients to make organic molecules.
  3. Energy does not cycle.

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