Question

Given below are interactions depicted between two species with a ‘+’ sign for beneficial interaction and ‘-’ sign for detrimental interaction. Choose the option which depicts mutualism.

• A. Species A + Species B -
  
• B. Species A + Species B +
• C. Species A - Species B -
• D. Species A - Species B +

Answer 1

The correct option is B Species A + Species B +

Mutualism is a type of interaction in which both the organisms involved benefit from each other. For example a bee and a flower. The bee gains nectar from the flower for survival, and in turn it helps the plant propagate by carrying its pollen to other flowers. Hence, mutualism is a beneficial interaction.