linear growth
fixed number of cells reproduce in each generation
N=ct+N0
dN/dt=slope=c
exponential growth
fixed proportion of cells reproduce
unrestricted exponential growth
N=N0e^(rt)
dN/dt=slope=rN
logistic growth
occurs in environments where factors restrict growth
lag phase
births>deaths
stationary phase
birth rate=death rate
log phase
births»deaths