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<span>The collapse of communism and the rise of ethnic strife plunged the southern fringes of the former Soviet Union into turmoil, particularly in the Caucasus where some 1.5 million people had been forced from their homes in Georgia, Armenia and Azerbaijan.</span></span>
Answer:
The possible answers for this question are:
A. a glutamate antagonist
B. an acetylcholine antagonist
C. a serotonin antagonist
D. an epinephrine agonist
The correct answers are:
A. a glutamate antagonist
B. an acetylcholine antagonist
Explanation:
A glutamate antagonist is a substance that is commonly used in clinical medicine as an anesthetic, another common used of this substance could be to treat the neurodegeneration caused by stroke, parkinson, epilepsia and some other neural problems, as it inhibits the glutamate receptors.
On the other side the acetylcholine antagonist works as an inhibitor of the muscarinic receptor, avoiding with this process synapses of the cells.
It plays a huge role in the geographic pattern depending on various languages and types of people so it changes the geographic pattern up.