12. The graphs below illustrate 3 different populations. Graph
1 represents a population of fish introduced into a lake. Graph 2 represents
the world's human population. Graph 3 represents a population of paramecia (a
type of "wee beastie") in a laboratory dish. Study the graphs and
then answer the question below.
There is no dashed line in graph 2. What does this tell you
about the human population?
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Slichter