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.
Answer:
Settlements that are owned and ruled by a different country are called colonies.
Explanation:
C. Progressive ideals.
Republican parties usually enforce or take part in a progressive process.
Answer:
humidity oxygen content and salinity are abiotic
Answer: The Glorious Revolution, also called “The Revolution of 1688” and “The Bloodless Revolution,” took place from 1688 to 1689 in England. It involved the overthrow of the Catholic king James II, who was replaced by his Protestant daughter Mary and her Dutch husband, William of Orange.
Explanation: