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Ecology, AMorris
Ch 2, 3, 4, 5
33
Biology
10th Grade
09/16/2008

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Term
ECOLOGY
Definition
The study of interactions that take place between organisms & their environment
Term
ORGANIZATION OF LIVING THINGS
Definition
Organisms, Populations, Communities, Ecosystems, Biosphere
Term
Organisms
Definition
Species
Dog
Term
Species
Definition
Organisms that can interbreed and produce fertile offspring,
Chow Chow
Term
POPULATIONS
Definition
A group of organisms of the same species in the same area at the same time
My 2 Chow chow puppies.
Term
COMMUNITIES
Definition
A group of populations interacting in the same area at the same time
My chow chow puppies, the grass, and ants in my yard.
Term
ECOSYSTEM
Definition
A group of communities intereacting in the same area at the same time.
My yard, in Virginia.
Term
BIOSPHERE
Definition
A group of ecosystems interacting in the same area at the same time.
All the living things in VA, on planet Earth.
Term
BIODIVERSITY
Definition
All the different species. Variety of species in a given area.
Term
ABIOTIC
Definition
Non-living, factors in the environment, Wind
Term
BIOTIC
Definition
Living factors in an environment, Predator
Term
BIOTIC
Definition
Living factors in an environment, Predator
Term
EXTINCTION
Definition
The dying out of a species. No more of that species on the planet.
Term
ENDANGERED SPECIES
Definition
Species that have a high possibility of extinction.
Term
SYMBIOTIC RELATIONSHIP
Definition
A close relationship between 2 organisms. 3 types: mutualism, parasitism, commensalism
Term
PARASITISM
Definition
When 1 benefits and the other is harmed. required a HOST
Term
Mutualism
Definition
A symbiotic relationship where both species benefits
Term
Commensalism
Definition
A symbiotic relationship where one species benefits and the other is neither harmed nor benefitted
Term
Parasitism
Definition
A symbiotic relationship where one species benefits and the other is harmed
Term
Autotrophs
Definition
Are producers, make their own food
Term
Heterotroph
Definition
Eats food for energy (Humans)
Term
Food Chain
Definition
3 organisms who eats who
mice to cats to dogs
Term
Limiting Factor
Definition
Any biotic or abiotic factor that limits the numbers, existence, reproduction or distribution of an organisms
Term
Tolerance
Definition
The ability of an organism to withstand fluctuations in biotic and abiotic environmental factors
Term
Ecological Succession
Definition
The gradual progression where organisms populate an environment
Term
Primary Succession
Definition
The first time an area is populated by living organisms and reaches the climax community status
Term
Secondary Succession
Definition
When a climax community is destroyed and gradually rebuilds itself
Term
Pioneer Species
Definition
The first organisms to populated an area. Mosses, lichens, simple grass
Term
Exponential Growth
Definition
Large large growth, J shaped graph
S shaped graphs
Term
Density dependent factors
Definition
Affect a population because the population is close together
Disease, predators, food
Term
Habitat Fragmentation
Definition
Where a habitat has been divided
Building a road through the middle of a forest
Term
HAbitat Corridors
Definition
Where two areas that are apart are linked together by a piece of land, specifically for migrating organisms
Term
Once you have gone through the flashcards once
Definition
E-mail me at amorris@aumail.averett.edu
in the subject line type: Give me extra credit!!!!!
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