Which ancient Chinese era is missing in the timeline above ? A. Shang
B. Qin
C. Han
D. Ming

The answer is A. Shang :)!

Identify and describe the four stages of the demographic transition model

Which of these describes nerve cells? a. specialized cells that protect the body from harmful bacteria b. specialized cells that maintain structural support c. specialized cells that send messages from one part of the body to another d. specialized cells that the body move freely and maintain flexibility

What is the idea that earth is broken into many plates that are slowly moving is called