Answer:
placebo control group
Explanation:
In order to determine that a drug has any effect in the body participants of a study are divided into two groups a group which actually receives the treatment and the other group receives a fake treatment. The participants are unaware of which group they belong to.
The fake treatment group is called the placebo control group. If the drug is actually effective then the placebo control group should not shoe the same effects that the treatment group is showing.
Here, the capsule received by group 2 looks like the capsule with the Ginkgo Biloba herb. The participants of group 2 should not show an increased blood flow to the brain. The participants of group 1 should show an increased blood flow to the brain. This would prove that the Ginkgo Biloba increases blood flow to the brain.
Idi Amin of Uganda is an example of a dictator, as he forced a regime of his own accord upon the nation, instead of using democracy to establish a fair government.
Aristotle was a philosopher in Ancient Greece; Tony Blair was the democratically-elected Prime Minister of the UK from 1997-2007 and was part of the Labour Party.
Socialists oppose to progressive reform as they think it as revolutionism.