Could be both. Some caterpillars are carnivorous, and they can certainly prey on trees. Caterpillars also can be eaten by a number of species, particularly birds.
It is a preditor
Its predator not preditor
Both.
Both.
A shark is both prey and predator
both it a preditor and prey
Bunnies are prey - to eagles, foxes and snakes.
preditor
I think the caterpillar is prey. For it is small.
is the giardia a preditor or prey
both preditor and prey
it might as well be snails