Question

when an accurate experiment is repeated by another scientist, the results
a should be similar to those obtained originally.
b will be identical every time the experiment is repeated.
c should be completely different for a different scientist.
d should vary quite a bit because of the difference in time between the completion of the experiments.

Explanation:

In scientific experiments, when an accurate experiment is repeated, due to factors like measurement errors (even with precise instruments, there are always some minor inaccuracies), slight environmental changes (e.g., temperature fluctuations within a very small range that might affect some chemical reactions minimally), the results should be similar to those obtained originally. Option B is incorrect because in a well - designed experiment, there is no reason for results to be identical every time due to the mentioned minor influencing factors. Option C is wrong as a well - designed experiment should have results that follow the same scientific principles regardless of the scientist (assuming the scientist follows the correct experimental procedures). Option D is incorrect because the time difference between experiment completions (if within a reasonable range and with proper storage of experimental materials etc.) should not cause a "quite a bit" variation if the experiment is well - controlled.

Answer:

A. should be similar to those obtained originally.