cycles and feeding relationships Flashcards
when organisms die or produce waste products,what is the dead material broken down by
organisms called decomposers
decomposers are certain types of _______
bacteria and fungi
what factors affect decomposers?
- oxygen
- moisture
- a suitable temperature
- a suitable PH
what do decomposers secrete to break down and partly digest the waste
enzymes
what is produced if waste is broken down in anaerobic conditions
methane gas
what is compost acting as for growing plants
a natural fertiliser
what do biogas generators produce?
biogas from waste for use as a fuel
what is the carbon cycle describing
how carbon is recycled in nature
what does the carbon cycle rely on to return carbon to the atmosphere as carbon dioxide through respiration
decomposers
what does the water cycle entail?
it describes how fresh water circulates between living organisms,rivers and the sea
where can feeding relationships be shown
food chains
what do all food chains begin with
a producer,which synthesises molecules
what does synthesise mean?
make
what are producers eaten by?
primary consumers
what is the scientific word for top predators?
Apex Predators
