Energy Flow
Shaping an Ecosystem
Population Growth
100
Uses sunlight energy or inorganic compounds to produce their own food
What is an Autotroph?
100
These physical, or non-living, factors help to shape and influence an ecosystem.
What is an abiotic factor?
100
Described as the number of individuals per unit area.
What is population density?
200
A consumer that feeds on dead animal and plant remains
What is a detritivore?
200
The area where an organism lives that includes both biotic and abiotic factors.
What is a Habitat?
200
The movement of individuals into an area that can cause populations to grow.
What is Immigration?
300
Energy stored by producers can be passed through an ecosystem along this series of steps
What is a food chain?
300
The full range of physical and biological conditions in which an organism lives and the way the organism uses these conditions.
What is a Niche?
300
Population growth that occurs when the individuals reproduce at a constant rate.
What is exponential growth?
400
A network of complex feeding interactions in an ecosystem.
What is a food web?
400
A symbiosis where both species benefit from the relationship.
What is Mutualism?
400
A growth pattern that occurs as resources become less available and population growth slows or stops.
What is Logistic Growth?
500
Each step (or level) in a food chain or food web.
What is a trophic level?
500
A symbosis where species benefits while the other is neither harmed nor helped.
What is Commensalism?
500
A value that represents the largest number of individuals in a population that a given habitat can support.
What is the Carrying Capacity?
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