Question

An ecosystem consists of:
1. Chemical and physical components
2. Biotic and abiotic components
3. Physical and social components
4. Biotic and antibiotic components

Answer 1

Correct Answer - Option 2 : Biotic and abiotic components

The correct answer is Biotic and abiotic components.

• An ecosystem consists of Biotic and abiotic components.

• An ecosystem consists of a community of organisms together with their physical environment consists of two components Biotic and Abiotic.
  •    Biotic consists of living organisms (Producers, Consumers, Decomposers).
  • Abiotic consists of non-living organisms (air, water, soil, and Sunlight).

​   

• The food chain is a linear sequence of organisms where nutrients and energy transferred from one organism to another.
  •  Producers make their own food. Producers include all autotrophs such as plants. They are called autotrophs as they can produce food through the process of photosynthesis.
  • Primary Consumers depend on the producers. Example - Rat.
  • Secondary consumers depend on the primary consumer for energy. Example- Snake
  • Tertiary consumers depend on the secondary consumers for the food. Example- Eagle
  • Decomposers are microorganisms that decompose the dead and decaying material into humus which enriches the soil. Example - Bacteria, Fungus.

• Father of  Ecosystem - Arthur Tansley