To be able to answer a question that involves a graph, I would need to see the graph :)
Answer:
true
Explanation:
Central Asia is the land of the Silk Road, Marco Polo's explorations, and nomads living in yurts. Several countries across this region became independent with the collapse of the Soviet Union, but many signs of communist rule are still around.[ i just searched this up]
in my opinion, if you read the paragraph above you can easily identify that there were yurts in the soviet reign.
Helped find sustainable funding to construct the roads more quickly and not as ugly as they were intended to be
Answer:
The correct option is : <u>C. prevent the immune system from responding to self-antigens</u> and <u>D. prevent excessive response to foreign antigens </u>
Explanation:
<u>Immune tolerance</u>, also known as the immunotolerance, of the immune system, is a state of unresponsiveness to the cells or tissues that are capable of eliciting an immune response in an organism.
Tolerance is classified into <u>central and peripheral. </u>The central tolerance is induced in the thymus and bone marrow. Whereas, the peripheral tolerance is induced in the other tissues and the lymph nodes.
<u>Central tolerance of the immune system is responsible for discriminating the self cells from the non-self cells of the body and thus prevents the body from responding to self-antigens.</u>
<u>Peripheral tolerance of the immune system is responsible for preventing excessive response of the immune system to foreign antigens like allergens.</u>
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