Multiple Choice
An ecologist catches 100 frogs from a pond,marks them,and releases them back into the pond.After a few days,another 100 frogs are captured and 10 have the marks on them.How many frogs are in the pond?
A) 100
B) 900
C) 10,000
D) 90
E) 1000
Correct Answer:
Verified
Correct Answer:
Verified
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