Scavenger

Vultures gather around a dead deer
Ants crawl all over a dead worm

Community

Camels, Cacti, Sagebrush, lizards, Snakes, an dInsects all live together in a section of the desert

Parisitism +-

A tick feedson your dog
A bacteria causes your throat to be soar

competition

Beetles and Termites want to break down the dead material in the same spot on the same dead tree
weeds choke out the young corn plants in the garden

food chain

Mice feed on acorns; owls feed on mice

predator- prey

A pond frog cathces a nice fly on his sticky tounge
a mountian lion stalks a young deer
a spider traps a fat fly in her web

Dominant Species

the dandelions seem to be taking over your lawn

Population

Mule deer live in the forest behind my house

Commensalism +o

An orchid attaches itself to a tree branch without doing the tree any harm

Mutualism ++

a poisonous sea anemone gives protection to a fish, but feeds on the predators that come after it.
Some bacteria live and get their nourishment inside your intestines, and help to keep them healthy

Decomposer

A fungus growns on a rotting log