Find the odd one out,according to parasitism.

Which type of interaction is seen between sea anemone and clown fish?

Which of the following is most commonly cited as a predator?

Which of the following is an example of a positive interaction in a population?

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?

Select the correct match.

$(I)$ Interaction	$(II)$ Effect
$(a) (+, -)$	$(P)$ Amensalism
$(b) (-, -)$	$(Q)$ Commensalism
$(c) (-, 0)$	$(R)$ Predation
$(d) (+, 0)$	$(S)$ Competition