I believe the answer is: double-blind experiment
In double blind experiments, the subjects that receive the treatment is remained unknown by both the researchers and the subjects until the experiment is finished. The main purpose of double-blind experiment it eliminate the bias of perception that might exist among researchers.
If you are referring to the British king and the charges that the
colonists made, then they were that he didn't care about the colonies
and only wanted power and wealth for himself. He taxed them as he saw
fit and they died in wars caused by him. They didn't want to participate
in them anymore, nor did they want to pay taxes to him.
The correct answer to this question is letter "d. a set number." Exit "immigration was restricted by assigning each nationality a quota based on its representation in past u.s. census figures." in this passage, the word <span>quota means a set of number.</span>
Answer:
Birds’ feathers are designed to be light but very strong, flexible but very tough. Although it looks like feathers grow all over a bird, they actually grow in specific areas called feather tracks. In between the feather tracks are down feathers. This keeps the body weight down.
Feathers are made of a tough and flexible material called keratin. The spine down the middle, called the shaft, is hollow. The vanes are on the two halves of the feather. They are made of thousands of branches called barbs. Because there are many spaces between these barbs, a feather has as much air as matter.
Explanation:
Answer:
https://www.history.com/topics/native-american-history/native-american-cultures
Explanation:
go to this website
