General Biology Final Exam Revision
Question with Reliable Solutions
3 important characteristics of a population - Answer geographic distribution, density, and growth rate
3 factors that affect population size - Answer number of births, number of deaths, number of individuals
that enter or leave the population
population density - Answer number of individuals per unit of area
immigration - Answer movement of individuals into an area occupied by an existing population
emigration - Answer movement of individuals out of an area
exponential growth - Answer growth pattern in which the individuals in a population reproduce at a
constant rate
logistic growth - Answer growth pattern in which a population's growth rate slows or stops following a
period of exponential growth
carrying capacity - Answer largest number of individuals of a population that a given environment can
support
examples of density-dependent limiting factors - Answer competition, predation, parasitism, and disease
examples of density-independent limiting factors - Answer unusual weather, natural disasters, seasonal
cycles, and certain human activities such as damming rivers and clear-cutting forests.
limiting factor - Answer factor that causes the growth of a population to decrease
, density-dependent limiting factor - Answer limiting factor that depends on population size
density-independent limiting factor - Answer limiting factor that affects all populations in similar ways,
regardless of population size
predator-prey relationship - Answer mechanism of population control in which a population is regulated
by predation
human population - Answer tends to increase over time like the populations of many other living
organisms
Why do some countries have high population growth rates while populations of other countries grow
slowly or not at all? - Answer because of the characteristics of populations and the social and economic
factors that affect them
biodiversity - Answer biological diversity; the sum total of the variety of organisms in the biosphere; one
of Earth's greatest natural resources because many species have provided us with foods, industrial
products, and medicines.
human activity can reduce biodiversity by... - Answer by altering habitats, hunting species to extinction,
introducing toxic compounds into food webs, and introducing foreign species to new environments.
ecosystem diversity - Answer variety of habitats, living communities, and ecological processes in the
living world.
species diversity - Answer number of different species in the biosphere
genetic diversity - Answer sum total of all the different forms of genetic information carried by all
organisms living on Earth today.
extinction - Answer disappearance of a species from all parts of fits geographical range
Question with Reliable Solutions
3 important characteristics of a population - Answer geographic distribution, density, and growth rate
3 factors that affect population size - Answer number of births, number of deaths, number of individuals
that enter or leave the population
population density - Answer number of individuals per unit of area
immigration - Answer movement of individuals into an area occupied by an existing population
emigration - Answer movement of individuals out of an area
exponential growth - Answer growth pattern in which the individuals in a population reproduce at a
constant rate
logistic growth - Answer growth pattern in which a population's growth rate slows or stops following a
period of exponential growth
carrying capacity - Answer largest number of individuals of a population that a given environment can
support
examples of density-dependent limiting factors - Answer competition, predation, parasitism, and disease
examples of density-independent limiting factors - Answer unusual weather, natural disasters, seasonal
cycles, and certain human activities such as damming rivers and clear-cutting forests.
limiting factor - Answer factor that causes the growth of a population to decrease
, density-dependent limiting factor - Answer limiting factor that depends on population size
density-independent limiting factor - Answer limiting factor that affects all populations in similar ways,
regardless of population size
predator-prey relationship - Answer mechanism of population control in which a population is regulated
by predation
human population - Answer tends to increase over time like the populations of many other living
organisms
Why do some countries have high population growth rates while populations of other countries grow
slowly or not at all? - Answer because of the characteristics of populations and the social and economic
factors that affect them
biodiversity - Answer biological diversity; the sum total of the variety of organisms in the biosphere; one
of Earth's greatest natural resources because many species have provided us with foods, industrial
products, and medicines.
human activity can reduce biodiversity by... - Answer by altering habitats, hunting species to extinction,
introducing toxic compounds into food webs, and introducing foreign species to new environments.
ecosystem diversity - Answer variety of habitats, living communities, and ecological processes in the
living world.
species diversity - Answer number of different species in the biosphere
genetic diversity - Answer sum total of all the different forms of genetic information carried by all
organisms living on Earth today.
extinction - Answer disappearance of a species from all parts of fits geographical range
