Question

The symbiotic relationship between certain species of cleaner fish and larger marine predators is highly specialized. The predators allow the smaller fish to remove parasites from their skin and gills, even allowing them to enter their mouths, which ensures the predator's health and provides food for the cleaner. Researchers have discovered that this _______ is maintained through specific,, non-aggressive behaviors that prevent the predator from consuming the cleaner.
Which choice completes the text with the most logical and precise word or phrase?
A) isolation
B) competition
C) interaction
D) antagonism

Answer 1

C) interaction

"Interaction" best fits because it neutrally describes the reciprocal, cooperative behavior between cleaner fish and predators; the other options (isolation, competition, antagonism) are inconsistent with the cooperative, non-aggressive context.