Concept of Ecosystems

Environment and Ecology

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Indian Economy - Understanding the basics of Indian economic system

Consider the following statements.

1. The steps of trophic levels expressed in a diagrammatic way are referred to as ecological pyramids.

2. The pyramid of biomass shall always be upright.

3. The pyramid of number can be both upright and inverted.

4. The pyramid of biomass is measured in gm/m.

Which of the above statements are correct?

1 and 3 only

1, 2 and 4 only

1, 2 and 3 only

1, 3 and 4 only

Statement 1: - Correct. Ecological pyramids represent trophic levels diagrammatically.
Statement 2:- Incorrect. Pyramid of biomass can be inverted in aquatic ecosystems.
Statement 3:- Correct. Pyramid of number can be both upright and inverted based on ecosystem types.
Statement 4:- Incorrect. Biomass is measured in gm/m², not gm/m.
Correct Answer: Option 1, 1 and 3 only