Which of the following statements best describes the parasitism relationship?
The answer is: One creature benefits and the other harms.
Parasitism is an interaction between two organisms, where one is benefited and the other is harmed. This relationship can vary in intensity, with some organisms taking more than others. It is important to note that parasitism is not a form of symbiosis, which is an interaction between two or more organisms that can be mutually beneficial. A parasitism relationship between two organisms is a one-sided interaction, in which one organism benefits while the other is harmed.