Answer:
making or showing an unfair or prejudicial distinction between different categories of people or things, especially on the grounds of race, age, or sex.
Explanation:
a or c... probably a since fishing villages aren't that important to world history... but Mesopotamia was known to be the first civilization, as well as the Indus Valley and Tigris Valley civilizations.... id go with a
<span>C) Political and ethnic rivalries within the countries emerged after independence. </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.