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Environmental Science C2 & C3

Terms

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Non-living parts of an ecosystem.
What are Abiotic Factors?
p35
An inherited trait that increases an organism's chance for survival & reproduction in a certain environment.
What is Adaptation?
p46
Living parts of an ecosystem
What is Biotic Factors?
p.35.
Two/more species evolving in response to each other.
What is Co-evolution?
p. 46.
Relationship between two species in which one specie benefits and the other is neither harmed/helped.
What is Commensalism?
p42.
A group of interacting populations of different species.
What is a Community?
p. 37.
The relationship between species that attempt to use the same limited resource.
What is Competition?
p. 40.
All living organisms in a certain area as well as their physical environment
What is an Ecosystem?
p. 34.
Change in the genetic characteristics of a population from one generation to the next.
What is Evolution?
p. 44.
The irreversible disappearance of a population or species.
What is Extinction?
p. 46.
A place where an organism lives.
What is a Habitat?
p. 38.
Organism from which a parasite takes its nourishment.
What is a Host?
p. 41.
A relationship between two species in which both benefit.
What is Mutualism?
p. 41.
A term used to describe the unequal survival and reproduction of organisms that results from the presence or absence of particular inherited traits.
What is Natural Selection?
p. 43.
An organism's way of life
What is Niche?
p. 38.
An individual living thing.
What is an Organism?
p. 37
An organism that lives in or on another organism and feeds on it without immediately killing it.
What is a Parasite? p.41.
The relationship between a parasite and its host.
What is Parasitism? p. 41
A group of individuals of the same species living in a particular place.
What is a Population? p. 37.
The act of killing and eating another organism.
What is Predation? p. 39.
An organism that kills and eats another organism.
What is a Predator? p. 39.
An organism that is killed and eaten by a predator.
What is Prey? p. 39.
A group of organisms that are able to produce fertile offspring and that resemble each other, in appearance, behavior, & internal structure.
What are Species? p. 37.
Consumer that eats only other consumers.
What is a Carnivore? p. 57.
The process of breaking down food to yield energy.
What is Cellular Respiration?
p. 57.
Final, Stable community that forms when lands are left undisturbed.
What is a Climax Community?
p.67
An organism that gets its energy by eating other organisms; a heterotroph
What is a Consumer? p. 56.
A consumer that gets its food by breaking down dead organisms.
What is a Decomposer? p.57
The sequence in which energy is transferred from one organism to the next as each organism eats and is then eaten by another.
What is a Food Chain? p.59
Diagram showing feeding relationships between organisms in an ecosystem.
What is a Food Web? p.60
Consumer that eats only producers.
What is a Herbivore?
p. 57.
Bacteria that convert nitrogen gas from the atmosphere into a form that plants can use.
What are Nitrogen-Fixing Bacteria? p. 64.
Consumers that eat both plants and animals.
What is an Omnivore? p.57
First organisms to colonize any newly available area and start the process of succession.
What are Pioneers? p. 67.
Rain, sleet, hail, snow that has condensed from water vapor in the atmosphere and returns to Earth's surface.
What is Precipitation? p. 63.
Succession that occurs in areas where no ecosystem has existed previously.
What is Primary Succession? p. 69.
An organism that makes its own ; autotroph
What is a Producer?
p. 56.
Pattern of change in an area where an ecosystem has previously existed.
What is Secondary Succession?
p. 67.
The regular pattern of changes over time in the types of species in a community.
What is Succession.
p. 66
A step in the transfer of energy through an ecosystem.
What is Trophic Levels?
p. 60
The continual process by which water circulates between the atmosphere and Earth.
What is the Water Cycle?
p. 62.

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