Answer:
C. Each pruning method was used on only one shrub.
Explanation:
Reproducibility is one of the most important factors contributing to the reliability of scientific research. The researcher must be able to achieve the same results two to three times. In biological research, this is usually done in the from of triplicates i.e. one experiment is repeated three times. This is done for two reasons:
- Producing reproducible results
- Ruling out false positives (a negative result that presents as positive due to error) and negatives (a positive result that presents as negative due to error)
Triplicates rule out the possibility that the observed change was caused by another factor or through mere chance. Therefore, in the current scenario, each pruning method should have been applied to multiple (at least 3) samples of a shrub.
Diffusion refers to the random motion of particles from a medium of higher concentration to a medium of lower concentration.
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High tide. That is where the tidal bulge is.
