B16

Interaction of a community of living organisms with non living parts of their environment

If one species is removed it can affect the whole community

Organisms that live in extreme conditions High pressure High temperature High salt concentration

Longer ears- increase heat loss Larger SA:V- increases heat loss Hump with fat- converts water via respiration Long eyelashes- keeps dust out of eyes Hairs on the feet- protection

Fewer stomata- reduces evaporation Thick stem- water storage Plant leaves covered in wax- reduces water loss and reflects heat Shallow and longer roots- increases water uptake and reduces competition with others Leaves fold in(wilt)-reduces surface area

Always Availability of food Needing New predators arriving New New pathogens Ideas Insufficient no. of species to breed

Little Light intensity Things Temperature Matter Moisture levels So Soul pH and mineral content Work Wind intensity Consistently CO2 levels for plants Okay O2 levels for aquatic animals

Respiration Muscle contraction(movement) Excretion(faeces)

-photosynthesis in plants absorb CO2 to build organic molecules such as cellulose and proteins • organisms do cell respiration • organisms contain carbon in their waste • feeding on plants absorbing more carbon • dead organisms decay, carbon returns to soil and their cells respire • combustion & incomplete thermal decomposition

Breaks down dead organic matter Bacteria Maggots Worms Fungi

• Add crop(maize) in generator • Add decomposers and limit the oxygen so they respite anaerobically • Methane is produced which is a fuel that can be combusted

• created from dead plants or animal waste • Rich in nitrogen so when added to soil decomposers they’re able to recycle the minerals • Better than artificial fertilisers