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hammer [34]
3 years ago
13

When a macrophage encounters a free-floating pathogen, it phagocytizes it, breaks it down into pieces, then displays the pieces

on its cell surface using a certain protein molecule. Displaying pieces of a pathogen in this fashion is called antigen ______________.
Social Studies
1 answer:
hjlf3 years ago
6 0

Answer:

presentation.

Explanation:

When a macrophage encounters a free-floating pathogen, it phagocytizes it, breaks it down into pieces, then displays the pieces on its cell surface using a certain protein molecule. Displaying pieces of a pathogen in this fashion is called antigen presentation.

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The adrenal medulla secretes epinephrine and norepinephrine. A tumor on the adrenal medulla, called pheochromocytoma, causes exc
marshall27 [118]

Answer:

C). Prolonged events similar to the sympathetic nervous system, such as elevated heart rate and blood pressure, decreased digestive and urinary activities and increased metabolic rate.

Explanation:

As per the question, the effects of tumors like pheochromocytoma in the inner part of medulla may lead to several problems as the number of hormones secreted are too high in the adrenal gland which leads to complications. It results in extended events that are quite identical to the sympathetic nervous system, like inflated heart rate as well as blood pressure. Along with that, it also leads to a decreased level of digestion as well as urinary actions and an elevated metabolic rate which could be fatal as it increases the chances of a stroke, attack, etc. Therefore, <u>option C</u> is the correct answer.

7 0
3 years ago
The Ohio River has had the most impact on the nation’s history. * TRUE OR FALSE
quester [9]
FALSE
The Mississippi River has had the most impact on the nations history
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3 years ago
What inspired Confucius to develop his system of ethics????
algol [13]

Answer:

the philosophy of Confucius is historically underdetermined, and it is possible to trace multiple sets of coherent doctrines back to the early period, each grounded in different sets of classical sources and schools of interpretation linked to his name. After introducing key texts and interpreters, then, this entry explores three principal interconnected areas of concern: a psychology of ritual that describes how ideal social forms regulate individuals, an ethics rooted in the cultivation of a set of personal virtues, and a theory of society and politics based on normative views of the family and the state.

Explanation:

3 0
3 years ago
Researchers who traveled to St. Petersburg, Florida, to observe changes occurring in police roles and police-community relations
Ivan

Answer:

The answer is true:

Explanation:

The result of the research conducted came affirmative of the fact that citizens were satisfied with the community policing policy implementation.

5 0
3 years ago
⛔⛔HELP ME⛔⛔
algol13

Answer:

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Explanation:

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