The answer is the quadricep muscles. They are engaged whe you use the leg extension machine.
Hope this helps! :)
Answer:
2.) histamine
1.) actually i don't know what number 1 is, all i know is number 2
Answer:
Use the word NO. ...
Give a strong nonverbal NO message.
Use a firm tone of voice to support the NO message.
Really good and good book in general
