1.Which of the following activities does not involve the use of skeletal muscles?
a. thinking
b. eating
c. dancing
d. talking

2. Your heart beats involuntarily even if you are sleeping.What kind of muscles make up the heart?
a.Voluntary
b.Skeletal muscle
c.Smooth muscle
d.Involuntary muscle

3.What happens to a muscle when it contracts?
a.It becomes shorter
b.It becomes longer
c.It becomes stronger
d.It becomes weaker

nonsense=Report​