Correct option:(1)
Solution:
- Amensalism is an interaction between two organisms of different species.
- In which one species inhibits the growth of other species by secreting certain chemicals.
- The first species is neither get benefited nor harmed.
- (+) : (0) interaction is observed in commensalism.
- (+) : (+) interaction is observed in mutualism.
- (–) : (–) interaction is seen in competition.