The specific place where an organism lives in an ecosystem is called its habitat.

Here's a breakdown:

* Ecosystem: A community of living organisms (biotic) interacting with their non-living environment (abiotic). Think of a forest, a coral reef, or a desert.

* Habitat: The specific place within an ecosystem where an organism lives. This includes the physical environment (like temperature, sunlight, water availability) and the other organisms present.

For example:

* Ecosystem: Tropical Rainforest

* Habitat: The canopy of a tall tree

* Organism: A monkey

Let me know if you have any other questions!