when you perform the experiment
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A testable variable is what you test several times for a scientific investigation or medical investigation.
No, identical twins do not have the same fingerprints. While they share the same DNA, fingerprint patterns are influenced by both genetic and environmental factors during fetal development. This makes it a testable question, as researchers can compare the fingerprints of identical twins to assess their similarities and differences. Studies have consistently shown that even identical twins have unique fingerprints.
Hypothesis
A scientific hypothesis has to be testable.
The application of science to the needs and problems of society id