earths systems Flashcards
(22 cards)
System
A system pertains to interdependent or interrelated objects comprising and functioning as a whole
Feedback
a response within a system molecule
Model
object or even a process or a system that is used to describe and explain phenomena
Biosphere
It is the natural habitat of living organisms.
Ecosystem
A system that includes all living organisms
Biome
an area classified according to the species that live in that location.
Organism
any living biological entity
Population
A group of organisms of one species that interbreed and live in the same place at the same time
Biotic Factor
a living organism that shapes its environment.
Abiotic Factor
a non-living part of an ecosystem that shapes its environment.
Community
interacting group of various species in a common location.
Habitat
conditions and organisms in the immediate vicinity of a plant or animal
Niche
the role an organism plays in a community
Biodiversity
the variety of life found in a place on Earth
Keystone Species
an organism that helps define an entire ecosystem.
exponential growth
is a process that increases quantity over time.
logistic growth
a population’s per capita growth rate gets smaller and smaller as population size approaches a maximum imposed
carrying capacity
the number of people, other living organisms, or crops that a region can support without environmental degradation.
density dependent
any force that affects the size of a population of living
density independent
any force that affects the size of a population of living things
population density
the number of people living in each unit of area
emigration
the act of leaving one’s own country to settle permanently in another
