Planaria are flatworms that are found in shallow streams, often attached to the bottoms of
roc...
Planaria are flatworms that are found in shallow streams, often attached to the bottoms of
rocks. A class is studying a population of planaria in a nearby shallow stream. The graph
below shows data collected over 11 weeks.
After 5 weeks, the population decreased, and students concluded that the stream did not have
enough food to support a large population of planaria. If the trend continues, how many
planaria will be living by week 12.
A)600
B)500
C)400
D)300
Answers: 3
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