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sergey [27]
3 years ago
6

A scientist wants to know whether crabs grow at the same rate in shaded water and in sunny water. Which principle of experimenta

l design can the scientist best use to include a variety of crabs in both the shaded and sunny treatment groups of the study?
A.randomization
B.blocking
C.direct control
D.replication
Mathematics
1 answer:
asambeis [7]3 years ago
8 0

Answer:

B

The crabs are being blocked of sunlight

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