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densk [106]
3 years ago
13

Loretta and her friends want to find out which of their pets can run the fastest. Which kind of scientific investigation should

they use?
A.

a controlled experiment

B.

development of a model

C.

a review of existing work
Biology
1 answer:
antiseptic1488 [7]3 years ago
3 0
They should do A, a controlled experiment
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