Answer:
1. Repetition
2. Replication
Step-by-step explanation:
Good scientific design involves replication and repetition. Repetition is the act of performing a task several times. Replication is the ability of a process to be repeated in the same manner by another individual.
During a scientific research project, researchers have to perform multiple sets of analysis and trials so the results of the experiment can be reliable and accurate.
Once these results and conclusions have been published, other scientists within the same area of study will be able to replicate these methods and experiments with, for example, other species or variables.