1. Cottonwood Tree Only one single organism Mouse, Julie or Laurel would also work for examples

2. Mushrooms More than one of the same kind in the same place Other examples include girls & grass

3. Mushrooms, Mice & Grass Interacting populations

4. Rock and Creek Provide water and shelter for ecosystem habitants Scat and seeds are BIOTIC factors

5. A community is made up of just living organisms, an ecosystem has both biotic and abiotic factors