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19 terms

Mastering biology Chapter 1 and 37

For the final
STUDY
PLAY
Homeostasis
Maintaining a stable environment
Metabolism
The sum of chemical processes that occur within a living oragnisms to maintain life
biotic
living part of the ecosystem
abiotic
nonliving part of the ecosystem
organism
an individual plant, animal, or single celled life form
population
the inhabitants of a particular area
community
a group of organisms living in a particular area
ecosystem
a system that includes the biotic and abiotic factors functioning together.
food chain
The directional flow of energy in an ecosystem from one organism to another.
food web
Many food chains linked together
trophic level
step in dynamics of energy flow in an ecosystem.
decomposer
recycles nutrients by feeding on dead organisms.
independent variable
part of the experiment that the researcher controls
dependent variable
part of the experiment being measured
control
part of the experiment that stays the same
primary consumer
consumes the producer
secondary consumer
consumers the primary consumer
tertiary consumer
consumers the secondary consumer
variable
part of the experiment that changes