24 terms

Ecology Flash Cards

STUDY
PLAY
Food Chain
(ecology) a community of organisms where each member is eaten in turn by another member
Food Web
(ecology) a community of organisms where there are several interrelated food chains
Autotroph
organism capable of synthesizing its own food from simple organic substances
Habitat
the type of environment in which an organism or group normally lives or occurs
Symbiosis
the relation between two different species of organisms that are not dependent on one another
Ecosystem
a system formed by the interaction of a community of organisms with their physical environment
Community
(ecology) a group of interdependent organisms inhabiting the same region and interacting with each other
Biotic Factor
biological (alive) influence on organisms within an ecosystem
Biosphere
the regions of the surface and atmosphere of the Earth (or other planet) where living organisms exist
Parasitism
the relation between two different kinds of organisms in which one receives benefits from the other by causing damage to it (usually not fatal damage)
Heterotroph
an organism that depends on complex organic substances for nutrition and cannot produce it's own energy
Mutualism
symbiotic relationship in which both species benefit from the relationship
Niche
organism's role, or job, in its habitat
Ecology
the branch of biology concerned with the relations between organisms and their environment
Commensalism
the relation between two different kinds of organisms when one receives benefits from the other without damaging it
Decomposer
organism that breaks down and obtains energy from dead organic matter
Abiotic Factor
physical, or nonliving, factor that shapes an ecosystem
Scavenger
any animal that feeds on decaying organic matter
Producer
organism that can capture energy from sunlight or chemicals and use it to produce food from inorganic compounds; also called an autotroph
Consumer
An organism that obtains energy by feeding on other organisms.
logistic growth
Population growth that is controlled by limited resources
exponential growth
Growth of a population in an ideal, unlimited environment, represented by a J-shaped curve when population size is plotted over time.
carrying capacity
largest number of individuals of a population that a environment can support
biotic factor
a living part of an ecosystem
YOU MIGHT ALSO LIKE...