1.
These are non-living things in an ecosystem
2.
These are living or once-living things in an ecosystem
3.
The smallest unit of living things
4.
Any living thing that eats, grows, makes waste, and dies
5.
A group of organisms of the same species in the same area
6.
All of the populations of different species in an area
7.
A system consisting of all the interactions between biotic and abiotic factors
8.
The parts of Earth where life exists
