B. influenced by social norms.
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Histamine is the active amine responsible for the signs and symptoms encountered in an allergic reaction.
The outward signs of an allergic reaction are caused by histamine. This includes signs including a runny nose, wheezing, and swollen tissues. Mast cells release histamine during an allergic reaction, which causes allergy symptoms. Antihistamines attempt to halt the allergic reaction by blocking histamine activity.
Histamine is a significant cause of allergy illness and is primarily stored in mast cells and basophils. Histamine levels in the blood or tissues have been found to be higher during anaphylaxis and in animal models of allergic reactions to the skin, lungs, and nose.
To know more about Histamine here
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<u>Effect of Roman Empire fall in concern with farmer:</u>
Roman Empire had become inflexible and caught in the economic depression cycle resulted in official stagnation.
The causes of the collapse of this mighty Empire is very complicated than the straightforward series of military defeat. Extended frontiers needed a large army, invariably a huge demand on revenues, and successively generating a more and more unwieldy bureaucracy. Too several unproductive mouths were being fed by too few farmers and peasants.
This case was worsened within the areas invaded by Barbarians, wherever conditions were unstable. Continues civil wars for a rival of powers between political powers that drained the funds, depleted workforce, and exhausted the rural area. The debasement of the coinage due to huge rates of inflation, to extend the money provided to pay the military and directors, reduced confidence within the currency and suppressed economic production.
Answer:increasingly similar
Explanation:
According to sociology , an isomorphism occurs when organization begin to share some or more similarities either due to imitation or due to their development that shares similar constraints.
