In which kind of population interaction, one species is harmed whereas the other is unaffected?

Statement $-I:$ The interaction where one species is benefitted and the other is neither benefitted nor harmed is called commensalism.
Statement $-II:$ Barnacles growing on the back of a whale is an example of commensalism.

Which of the following exhibits a master-slave relationship?

An organism that obtains food and other requirements at the expense of another organism is called:

Which of the following represents the correct population interaction?

Competition is a rivalry between two or more organisms for obtaining the same resources. It is a type of