The correct answer is - involuntary contraction of the skeletal muscles.
Explanation:
Shivering or the chills that is involuntary action of body to maintain the homeostasis by controlling the body heat or maintaining body temperature it can cause by environmental change or the infection.
It is rapid involuntary contraction and relaxation of the skeletal muscles whenever body needs to produce heat when ti feels cold. Skeletal muscles are act as thermal effector in such cases.
Thus, the correct answer is - involuntary contraction of the skeletal muscles.
Styrofoam is poisonous when burned and it takes thousands of years to decompose card bord is biodegradable and probably won't give you cancer if u accidently eat some
D). If the crosswalks were painted it would it make it more visible to cars. It would also be more visible to pedestrians so they don't Jay walk and get hit.
