Answer:
placebo
Explanation:
We often hear about placebos being used in pharmacological tests. A placebo is an inert substance, sometimes called a "sugar pill," which can be given in place of the drug being evaluated.
Scientists commonly use placebos to study the effects of a new drug. This is done by providing the drug to a number of people who participate in the trial, while the rest receive another substance that lacks medical or therapeutic properties. Test participants do not know if they received the placebo or the actual drug. Often, even doctors know which participants ingest the drug and which not until the end of the pharmacological test.
In general, historians have identified several different causes of the Vietnam War, including: the spread of communism during the Cold War, American containment, and European imperialism in Vietnam.
Answer:
(c) Groupthink
Explanation:
Groupthink: The term is given by Irving Janis in 1972, which is commonly used in psychology. This is a psychological phenomenon, in which the people of a group shows the desire of conformity or harmony, and leads to dysfunctional or an irrational decision-making consequence.
Irving Janis has given eight symptoms of groupthink, and they are:
1. Stereotypes.
2. Self-censorship.
3. Morality.
4. Rationale.
5. Invulnerability.
6. Mind Guards.
7. Illusion of Unanimity.
8. Pressure.
Answer:
yes
Explanation:
they have been anscestors since ancient times
