Explanation:
Contamination can have undesirable consequences in real experiments, some of them are related to the feelings that may arise in the research participants, the contamination bias reduces the differences between the research groups, and can cause a comparison between the treatments of each different group, the which can generate conflicts and rivalries on the part of groups that consider themselves to be inferior to others. These contamination-related problems can significantly interfere with the research results.
No I don't think so because his or her peers could "cheat" meaning that they could lie and get him out of trouble. Another reason why they shouldn't is because if some of his or her peers didn't like he or she they could make it so that he or she would for sure get in trouble.
You must be voted in by citizens or any type of voting party
The true sentences are: The Constitution establishes a federal system of government. Power is divided between the central government and the states. Some powers are shared by the federal government and the states.
The constitution Regulates the division of powers between the Federal Government and the states. In addition, it establishes that any competition that is not explicitly granted to the Federal Government (or implicitly derived from the constitutional text) will remain in the hands of the States of the Union.
