Answer:
Prey predator- a stork eating a fish with its beak, in this example stork is a predator and fish is prey.
Commensalism- barnacles on the back of a whale, in this the whale neither get benefited nor harmed while the barnacles get benefited because they can travel large distance by attaching on the back whale in water.
Parasitism- ticks sucking the blood from body of an animal, here the ticks get benefited by sucking the blood of an animal and is a parasite on the animal( which get harmed)