1.

Observe the picture and answer the following questions.i) What is the source of energy in a food chain?ii) How does grasshopper get its energy?iii) What happens to the crow if the frog was removed from this food chain?iv) What is the role of mushrooms in the given picture?

Answer»

i) Sunlight is the source of energy in a food chain.

ii) 

  • In a food chain grasshopper is a primary consumer so that it depends on grass for food. 
  • Then grasshopper gets its energy by eating grass.

iii) 

  • In this food chain frog is a secondary consumer as its feed on grasshopper. 
  • If the frog was removed in this food chain, the grasshopper population will be increased. 
  • In this food chain crow is a tertiary consumer as its feed on frogs. 
  • If the frog was removed from this food chain, the crows will go hungry and their population will be decreased.

iv) 

  • Mushroom is a decomposer. 
  • Mushroom get it energy by the breakdown of dead matter. 
  • It helps in the cycling of materials in between producers, consumers and to the soil.


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