The importance of using a variety of sentence structures is to change up your writing. To make the reader engaged in what you have to say. If your sentence structure is weak and does not vary the reader might get bored. It also better shows your topic.
hope this helps! have a good day!
Answer:
It is a small American animal that lives underground and whose head and body are protected by a hard shell
depeneds on what their actions were during the time of the risky,dangerous, life-or-death situation.
B. Not all sources have accurate information