Chapter 10 Flashcards
(19 cards)
ecosytem
all living things and nonliving things in a given area.
abiotic factor
a nonliving thing in an ecosytem.
biotic factor
a living or once living thing or onc-living in an ecosytem.
habitat
the place within a organism lives provides the biotic and abiotic factors an organisms need to survive and reproduce.
population
all organisms of the same species that live in the same areas at the same time
community
all populations living in an ecosystem at the same time.
population density
the size of a population compared to the amount of space available
niche
the way a species react with a abiotic and biotic factors to obtain food find shelter and fulfill other needs.
competition
the demand for resources such as food water shelter in short supply in a community.
overpopulation
condition that occurs when a population becomes so large that it causes damage to the environment.
predation
the act of one organism the predator feeding on another organism the prey.to9
symbiosis
a close long-term relationship between two sopecies that ussually involves a exchange of food or energy.
mutalism
a symbolic relationship in which bothe organisms benefit.
commensalism
a symbolic relationship that benefits one species but does no harm or benefit to the other.
parasitism
a sympotic relationship in which one organism benefits the other is harmed.
producer
an organism that uses outside energy source such as the sun and produces its own food.
consumer
an organism that cannot make there one food and gets energy from eating other organisms.
food chain
a model that shows how energy flows in an ecosystem through feeding relationships.
food web
a model of energy transfer that can show how a food chain in a community are interconnected..
