ecology 8th grade
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symbiosis
A close, long-term relationship between two species that usually involves an exchange
mutualism
symbiosis that is beneficial to both organisms involved.
parasitism
the practice of living as a parasite in or on another organism.
commensalism
no one cares
habitat
The place within an ecosystem that provides the biotic and abiotic factors and organism needs to survive and reproduce
niche
The way a species interacts with abiotic and biotic factors to obtain food, find shelter, and fulfill other needs.
abotic
non-living part of an ecosystem that shapes its environment.
biotic
A biotic factor is a living organism that shapes its environment.
limiting factor
anything that constrains a population’s size and slows or stops it from growing.
scavenger
an animal that feeds on carrion, dead plant material, or refuse.