Global System

A biological community of interacting organisms and their physical environment.

• Hydrosphere

• Biosphere

• Ecosystem

• Community

The process by which cells break down glucose to release the energy they contain.

• Respiration

• Ammonification

• Photosynthesis

• Combustion

the process of burning something

• Ammonification

• Combustion

• Respiration

• Photosynthesis

a plant that live in a symbiotic relationship with a nitrogen-fixing bacteria

• Leguminous plants

• Algal bloom

• Natural gas

• 
  Nitrifying bacteria

A fossil fuel in the gaseous state

• carbon cycle

• oil

• fossil fuels

• 
  natural gas

the movement of carbon from the nonliving environment into living things and back

• respiration

• nitrogen cycle

• photosynthesis

• carbon cycle

process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and carbohydrates such as glucose

• respiration

• photosynthesis

• ecosystem

• combustion

Organisms that break down the dead remains of other organisms

• photosynthesis

• Nitrogen-fixing Bacteria

• Decomposers

• Biosphere

Coal, oil, natural gas, and other fuels that are ancient remains of plants and animals.

• nitrogen cycle

• fossil fuels

• 
  natural gas

• carbon cycle

The movement of nitrogen from the non living environment to the living environment and back

• photosynthesis

• carbon cycle

• nitrogen cycle

• combustion