BIOLOGY

2. Physical rather than biological; not derived from living organisms.
4. The regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms
8. Plankton consisting of microscopic plants.
9. An organism deriving its nutritional requirements from complex organic substances.
10. The synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight.

1. An organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide
3. The climate of a very small or restricted area, especially when this differs from the climate of the surrounding area.
5. The study of the relationships between living organisms and their physical environment
6. The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
7. Lacking light
11. Interaction between two different organisms living in close physical association, typically to the advantage of both.