AllInfoHub – MCQ Practice

Ecology and Environment – Multiple Choice Questions (MCQs)

1. The term 'Ecology' was coined by:
- A. Ernst Haeckel
- B. Eugen Warming
- C. A.G. Tansley
- D. Ramdeo Misra
2. A group of individuals of the same species living in a given geographical area is called:
- A. Population
- B. Community
- C. Biome
- D. Ecosystem
3. The functional unit of nature, where living organisms interact among themselves and with the surrounding physical environment, is called:
- A. Ecosystem
- B. Biome
- C. Community
- D. Population
4. Which of the following is a primary producer in an ecosystem?
- A. Green plants
- B. Fungi
- C. Bacteria
- D. Animals
5. Decomposers in an ecosystem are:
- A. Bacteria and fungi
- B. Green plants
- C. Herbivores
- D. Carnivores
6. The amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis is called:
- A. Gross primary productivity
- B. Net primary productivity
- C. Secondary productivity
- D. Tertiary productivity
7. The energy flow in an ecosystem is always:
- A. Unidirectional
- B. Bidirectional
- C. Multidirectional
- D. None of these
8. The 10% law of energy transfer in a food chain was proposed by:
- A. Raymond Lindeman
- B. Charles Elton
- C. A.G. Tansley
- D. Ernst Haeckel
9. An inverted pyramid of biomass is typically found in which ecosystem?
- A. Aquatic ecosystem
- B. Grassland ecosystem
- C. Forest ecosystem
- D. Desert ecosystem
10. Which of the following is a pioneer species in xerarch succession?
- A. Lichens
- B. Mosses
- C. Grasses
- D. Trees
11. The gradual and fairly predictable change in the species composition of a given area is called:
- A. Ecological succession
- B. Climax community
- C. Pioneer species
- D. Biomagnification
12. The maximum population size that an environment can sustain indefinitely is called:
- A. Carrying capacity
- B. Biotic potential
- C. Natality
- D. Mortality

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Ecology and Environment – Multiple Choice Questions (MCQs)

1. The term 'Ecology' was coined by:

2. A group of individuals of the same species living in a given geographical area is called:

3. The functional unit of nature, where living organisms interact among themselves and with the surrounding physical environment, is called:

4. Which of the following is a primary producer in an ecosystem?

5. Decomposers in an ecosystem are:

6. The amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis is called:

7. The energy flow in an ecosystem is always:

8. The 10% law of energy transfer in a food chain was proposed by:

9. An inverted pyramid of biomass is typically found in which ecosystem?

10. Which of the following is a pioneer species in xerarch succession?

11. The gradual and fairly predictable change in the species composition of a given area is called:

12. The maximum population size that an environment can sustain indefinitely is called:

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