Give the differences between $S$-shaped and $J$-shaped growth curves.

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$S$-shaped growth curve (Sigmoid)$J$-shaped growth curve
$(1)$ It consists of $5$ phases: lag phase,positive acceleration phase,exponential phase,negative acceleration phase,and stationary phase.$(1)$ It consists of $2$ phases: lag phase and exponential phase.
$(2)$ Finally,the population reaches a steady state where the growth rate becomes zero because the birth rate equals the death rate.$(2)$ Finally,the population crashes due to a rapid increase in mortality rate or resource exhaustion.
$(3)$ Example: Yeast cells in a culture medium.$(3)$ Example: Reindeers,algal blooms,or lemmings in the Tundra.

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