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Solution


Q.

While explaining interspecific interaction of population, (+) sign is assigned for beneficial interaction, (–) sign is assigned for detrimental interaction and (0) for neutral interaction. Which of the following interactions can be assigned (+) for one species and (–) for another species involved in the interaction           [2022]
1 Predation  
2 Amensalism  
3 Commensalism  
4 Competition  

Ans.

(1)

In predation, only one species benefits and the other is harmed.