Ecological System ,MPPSC MCQ

 

1. What does an ecological system, or ecosystem, encompass?

  • A) Only living organisms

  • B) Only physical environment

  • C) Dynamic and interconnected complex of living organisms and their physical environment

  • D) Static arrangement of living organisms

Answer: C) Dynamic and interconnected complex of living organisms and their physical environment

2. What are the components of an ecological system?

  • A) Only plants and animals

  • B) Only air and water

  • C) Living organisms (biotic) and non-living elements (abiotic)

  • D) Only fungi and bacteria

Answer: C) Living organisms (biotic) and non-living elements (abiotic)

3. Which level of organization in ecological systems includes individual organisms, populations, communities, and ecosystems?

  • A) Individual organisms

  • B) Populations

  • C) Communities

  • D) Ecosystems

Answer: D) Ecosystems

4. Where does the energy in ecosystems primarily originate?

  • A) Soil

  • B) Water

  • C) Sun

  • D) Air

Answer: C) Sun

5. What term describes the gradual change in species composition and structure of an ecosystem over time?

  • A) Evolution

  • B) Adaptation

  • C) Succession

  • D) Nutrient Cycling

Answer: C) Succession

6. Which biotic interaction involves one species benefiting and the other being unaffected?

  • A) Mutualism

  • B) Commensalism

  • C) Parasitism

  • D) Competition

Answer: B) Commensalism

7. What does resilience refer to in an ecological context?

  • A) Gradual change in species composition and emergence on new

  • B) Ability to recover from disturbances

  • C) Flow of energy through trophic levels

  • D) Maintenance of constant ecosystem structure

Answer: B) Ability to recover from disturbances

8. What are transitional zones between different ecosystems known as?

  • A) Trophic levels

  • B) Ecotones

  • C) Biotic interactions

  • D) Succession zones

Answer: B) Ecotones

9. How does landscape ecology contribute to the study of ecological systems?

  • A) Analyzing patterns and interactions at larger scales

  • B) Focusing only on individual organisms

  • C) Studying the resilience of ecosystems

  • D) Investigating nutrient cycling

Answer: A) Analyzing patterns and interactions at larger scales

10. What do indicator species in an ecosystem help assess?

  • A) Resilience

  • B) Succession

  • C) Health of the ecosystem

  • D) Landscape ecology

Answer: C) Health of the ecosystem

11. How are human activities such as deforestation and pollution impacting ecological systems?

  • A) Enhancing biodiversity

  • B) Promoting resilience

  • C) Leading to loss of biodiversity and imbalance in ecosystem functioning

  • D) Accelerating succession

Answer: C) Leading to loss of biodiversity and imbalance in ecosystem functioning

12. What is the focus of conservation efforts in the context of ecological systems?

  • A) Accelerating succession

  • B) Promoting human impact

  • C) Preserving biodiversity and maintaining ecosystem integrity

  • D) Disrupting ecological balance

Answer: C) Preserving biodiversity and maintaining ecosystem integrity

13. What term is used for different regions on Earth characterized by distinct climate, vegetation, and fauna?

  • A) Ecosystems

  • B) Ecotones

  • C) Biomes

  • D) Trophic levels

Answer: C) Biomes

14. How are events in one part of the world impacting ecosystems globally?

  • A) Global warming

  • B) Landscape ecology

  • C) Biogeography

  • D) Global ecological impact

Answer: D) Global ecological impact