You will be given a definition of a task first, then some input of the task.
In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.

passage: Host--parasite coevolution is a special case of coevolution, which is defined as the reciprocal adaptive genetic change of two antagonists (e.g. different species or genes) through reciprocal selective pressures. In the particular case of host--parasite coevolution the antagonists are different species of host and parasite.
question: can a parasite influence the evolution of its host?
Output:
Yes