30. wich of the following is true regarding the tendon reflex?
a. it causes a muscle that is being stretched to contract.
b. it makes the contralateral motor neurons contract.
c. it makes the ipsilateral motor neurons relax.
d. it prevents overcontraction of a muscle.
e. it causes a tendon to contract. Top of form

31. a predominance of which waves in an electroencephalogram (EGG) might indicate that a person is physically and mentally relaxed?
a. alpha
b. beta
c. theta
d. delta
e. gamma