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Higher Biology - Chapter 33
Glossary
11
Biology
Not Applicable
04/30/2011

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Term
birth rate
Definition
Measure of the number of new individuals produced by a population during a certain interval of time
Term
carrying capacity
Definition
Maximum size of a population that can be maintained by the resources available to the environment
Term
death rate
Definition
Measure of the number of individuals within a population that died during a certain interval of time
Term
density-dependent
Definition
Term referring to a factor that only affects a population once it has reached a certain size
Term
density-independent
Definition
Term referring to a factor that affects growth of a population regardless of the population’s density
Term
dynamic equilibrium
Definition
Steady state shown by a population that has reached the carrying capacity of its environment
Term
environmental resistance
Definition
Set of factors that affect the size of a population and prevent it from increasing in size indefinitely
Term
homeostasis
Definition
Negative feedback control that regulates population size
Term
population
Definition
Group of individuals of the same species
Term
population density
Definition
The number of individuals present per unit area or volume of a habitat
Term
population dynamics
Definition
Study of population changes and the factors that bring them about
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