Ecology Flashcards
system of living organisms function together in a unit
Ecosystem
created by a living thing, organisms affects the life of another organisms
Biotic factor
non-living chemical or physical factor in the environment
abiotic factor
a living thing that can react to stimuli, reproduce and grow
Organism
closely related organisms similar to each other.
species
group of organisms of one species that interbreed and live in the same place.
population
interacting group of species
community
place where an organism lives.
habitat
Only organisms best adapted live.
natural selection
enhance survival , repruduction is more succesful
evolution
organisms capable of synthesizing own food from inorganic resources.
producers/autotrophs
organisms that can not make its own food. takes in food from organic substances.
consumers/heterotrophs
herbivores that feed on autotrophic plants. which produce own food through photosynthesis.
Primary consumer
organisms, primary animals that eat primary consumers, carnivores and omnivores.
Secondary consumer
carnivore only feeds on secondary consumers
tertiary consumer