Question

food web
owls
snakes
foxes
field mice
plants
what do the arrows indicate?
the arrows suggest there is a relationship between these animal species. what is the nature of that relationship?
the arrow points from one animal to
a source of food for that animal.
the animal that feeds upon it.
a food competitor for that animal.
a direction of migration.

Explanation:

In a food - web, arrows point from the prey (the source of food) to the predator (the animal that feeds upon it). For example, the arrow from plants to field mice shows that field mice eat plants, and the arrow from field mice to snakes shows that snakes eat field mice.

Answer:

the animal that feeds upon it.