Question

which of the following pairs best represents predator-prey relationships? hares and lynx deer and grass acorns and squirrels crickets and flies

Explanation:

A predator - prey relationship is between a carnivorous predator and its animal prey. Hares (prey) are hunted by lynx (predator). Deer - grass is herbivore - plant, acorns - squirrels is herbivore - plant - based food, and crickets - flies don't have a clear predator - prey (they may be competitors or not related as such). So hares and lynx fit.

Answer:

A. hares and lynx