B. The observers up front were asked to sit down so that the ones in the back could see. When you are talking about people, you use sit, not set.
Answer:
Yes.
Explanation: I believe they are called specialized cells because they perform specialized jobs. Specialized cells create tissue, and tissue makes up our body. There are many different types of specialized cells such as Blood cells, reproductive cells, and nerve cells.
Answer: 1. Prior to that date, the voting age had been 21 in a majority of the states
2. The drive to lower the voting age from 21 to 18 grew across the country during the 1960s
Explanation: