Answer:
Muscles are attached to bones by tendons and help them to move. When a muscle contracts (bunches up), it gets shorter and so pulls on the bone it is attached to. When a muscle relaxes, it goes back to its normal size.
Explanation:
The answer is D) Cooper focused on the themes of the frontier that were prominent in American culture. I took the test and got this one right.
Answer:
"Age is an issue of mind over matter. If you don't mind, it doesn't matter."
Explanation: