“Ch. 8 Key Terms.” Flashcards
Population density
Each population has specific properties, including size, density, and pattern of dispersion.
dispersion
Where two things seperate
exponential growth
When a population has few limits on its growth, it may have an exponential growth rate. Usually, population growth is limited by factors such as disease and competitions.
Carrying capacity
carrying capacity is the maximum population a habitat can support over a long period of time.
Niche
The niche of an organism is its requirements for survival and/or its feeding relationships.
Parasitism
Where one organism harms another organism
Mutualism
When an organism benefits another organism
Commensalism
When an organism benefits from another while the other remains neutral
Competition predation
where to species compete for food
symbiosis
the living together of two dissimilar organisms
growth rate
When a population has few limits on its growth, it may undergo exponential growth. This is the fastest possible growth rate of the population.
Overgrazing
Where species destroy their land by eating too much
Linear growth
where a population exceeds its carrying capacity and declines dramatically
demographic transition
The transition of a human population from a condition of a high birth rate and a high death rate to a condition of a low birth rate and a low death rate. May result from economic or social development.
