The following graph depicts changes in two populations (A and B) of herbivores in a grassy field. A possible reason for these changes is that:

 

  • Option 1)

    Population A produced more offspring than population B

  • Option 2)

    Population A consumed the members of population B

  • Option 3)

    Both plant populations in this habitat decreased

  • Option 4)

    Population B competed more successfully for food than population A

 

Answers (2)

 

Competitive Exclusion Principle -

Two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior one will be eliminated eventually.

- wherein

This may be true if resources are limiting, but not otherwise.

 

 


Option 1)

Population A produced more offspring than population B

Incorrect option

Option 2)

Population A consumed the members of population B

Incorrect option

Option 3)

Both plant populations in this habitat decreased

Incorrect option

Option 4)

Population B competed more successfully for food than population A

Correct option

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