The Tyrannosaurus Rex lived as a Predator, keeping populations of smaller Predators and Herbivores in check. This way, all life in that area was balanced, and resources weren't overly taxed.
The role an organism plays in an ecosystem is its niche.
The most important role an organism plays in the ecosystem
the pond ecosystem
the role of a decomposer in an ecosystem is to use waste materials and dead organisms for food.
A wallaby's role in our ecosystem is to eat plants and give meat to the animals that eat it.
a bad role
Decomposer.
mom
mom
producer
its niche
It keeps the ecosystem from flying off the face of the planet