- A reaction that releases carbon dioxide and water from organic molecules
- Carbon sink in the ocean -- shells -- sediment -- rock (fossilization)
- Moves carbon dioxide from the air to the sea, or vise versa
- Combustion moves carbon from fossil fuels in lithosphere to CO2 in the atmosphere
- CO2 dissolves in oceans -- carbonic acid -- makes pH more acidic
- The energy value is calculated over whole year, which allows for seasonal variations in populations
- Converts carbonates in corals and molluscs into sedimentary rocks
- Populations of different species and their abiotic environment
- One species is likely to survive than another in competition because it has more food sources and if one dies, they still have things to eat
- The populations interact with each other and with their environment
- Containing carbon as hydrocarbon molecules from fossilization of organic molecules
- Animals in the ocean consume phytoplankton and other animals passing carbon through the food webs
- Moves carbon containing organic compounds from organism to organism
- Organisms that produce food for themselves and other organisms
- Autotrophs obtain inorganic nutrients from the abiotic environment
- The energy content of different animals is calculated which takes account of size as well as the nutritional value of organisms (1g of bone has less energy than 1g of muscle)
- Primary consumers absorbs energy from the producers, secondary consumers absorbs energy from the primary producers
- Dead leaves, dead animals and faeces adds organic molecules to the litter / detritus
- The populations interact with each other, through feeding chains, competition, predation etc
- Saprophytes and detritivores decompose organic molecules, adding inorganic nutrients to the soil