The best example would be rabbits and hares which feed on grass and are eaten by foxes.
COWS eat grass and gets eaten by a human a hamburger
A lion eats the camel!
you
wolf
snake
A mink
it gets eaten by a grasshopper
it eats leaves and gets eaten by birds
The relationship between who eats and who gets eaten.
One eats, one gets eaten.
the red fox will eat about anything but lets go with rabbits the fox eats the rabbit the rabbit eats grass an the grass gets energy from th sun.
The grass gets it's energy from the sun and then the rabbit eats the grass.