Popular actor michael j. fox lives with parkinson's disease. his symptoms include shaking and trembling, signs of a deficiency of the neurotransmitter:
a. gaba.
b. norepinephrine.
c. serotonin.
d. dopamine.

Which of these is not related to the teeth? a. chymob. pulpc. enamold. dentin

The heart and lung are located in which cavity ? thoracic

Matching: 1. first used by europeans as a local anesthetic; now abused for its euphoric effects 5 marijuana 2. found in coffee beans, tea leaves, and cocoa beans 2 heroin 3. prescribed for pain involving serious injury or surgery 1 morphine 4. illegal derivative of morphine that is sold on the street as a white powder 6 caffeine 5. can evoke feelings of terror and panic 4 lsd 6. causes user to experience a conscious dreamlike state 3 cocaine