introduction to ecology Flashcards
ecology is the study of
ecosystems
an ecosystem is..
an easily described system/area where organisms interact with their physical environment
all ecosystems include these components:
producers, consumers, decomposers and a physical environment
what are producers
organisms which make their own food
(photosynthesising plants)
what are consumers
organisms which eat other living things
(animals)
what are decomposers
organisms that secrete digestive enzymes to decay dead organic matter for food
what is the physical environment
all the abiotic factors which affect growth and survival
(CO2, temp and oxygen conc)
each ecosystem contains a range of different
habitats
what are habitats
the places where specific organisms live