Ch. 8 Key Terms Flashcards
population
set of individuals within a species living in the same place at the same time.
density
number of individuals per unit of area or volume
dispersion
describes the arrangement of its individuals in space
growth rate
the birth rate minus the death rate
reproductive potential
the maximum number of offspring that each member of the population can produce
exponential growth
they grow faster and faster
carrying capacity
the population size where birth rates and death rates are equal
niche
the range of conditions in which a species can survive
competition
is a relationship in which different individuals or populations attempt to use the same limited resource
predation
organism feeds on another organism which is the prey
parasitism
a parasite takes nourishment from the host
mutualism
when two species provides a benefit for eachother
commensalism
one species benefits while the other is neither harmed or benefits
symbiosis
where two species live in close association
