Leviathan was written by Thomas Hobbes.
One species(the parasite) benefits while the other species (the host) is harmed
The Correct Answer would be at the end of the sentence.
Quality is doing the right things right and is uniquely defined by each individual. — A product or process that is Reliable, and that performs its intended function is said to be a quality product. — The degree to which something meets or exceeds the expectations of its consumers.