chapter 10 Flashcards
all the living things and nonliving things in a given area
ecosytem
a nonliving thing ina ecosytem
abiotic factor
a living or once living thing in a ecosystem
biotic factor
the place within an ecosystem where a orgamisam lives; provides the biotic and abiotic factors an organism needs to survive and reproduce
habitat
all the organisms of the same species that live in same area at the same time
population
all the populations living in a ecosystem at the same time
community
the size of a population compared to the amount of space available
population density
the way a species interacts with abiotic and biotic factor to obtain food, find shelter, and fulfill other needs
niche
the demand for resources, such as food, water, shelter, in short supply in a community
competition
condition that occurs when a population becomes so large that it causes damage to the environment
overpopulation
the act of one orgamism, the predator feeding on another organism, its prey
predation
a close long term relationship between two species that usually involves an exchange of food or energy
symbiosis
a simballic relationship in which both organism benefit
mutualism
a simballic relationship that benifets one species but does not harm or benefit the other
commensalism
a simballic relationship in which one organism benefits and the other is harmed
parasitism
an organism that uses outside energy source, such as the sun, and produces its own food
producer
an organism that can not make its own food and gets energy by eating other organisms
consumer
a model that shows how energy flows in a ecosystem through feeding relationships
food chain
a model of energy transfer that can show how the food chain in a community are interconnected
food web
