Abiotic factor - No living physical and chemical parts.
Biotic factor - Any livening component that affects any living organism.
Ecosystem - Community of living organism.
Habitat - Ecological or enviormental area.
Organism - An individual plant or animal or Singel celled life form.
Population - The amount of people or organism in a area.
Community - A group of people living in the same place.
Classification - The action or proses of classifating something.
Taxonomy - A branch of science concerned with classification.