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.
Height for one, think about giraffes they only eat leaves that are high in trees so over time they’ve adapted and gotten taller to reach better
Their teeth are also flatter to chew them and others adapt different appendages to help them gain their food like claws and spines
Many also have an internal clock so they can migrate to follow food
The answer would be:
C. Transcription
Here's a little more about gene regulation:
Gene regulation as mentioned already, is the process of turning genes on and off. In multicellular organisms, the different cells have the same DNA in them but through gene regulation, different sets of genes are expressed. The genes that are expressed determine the function and appearance of the cell.