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?
A) Competition
B) Predation
C) Amensalism
D) Commensalism
Explanation
[Solution] Predation (and parasitism) are (+,-) interactions; competition is (-,-), amensalism (-,0) and commensalism (+,0). Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.