They are one of the most extreme desert climates anywhere on earth, a cold desert where the mean annual temperature is between -14C and -30C depending on the site, windier sites are less cold.
Answer:
table manners, respect to those who are older than us
They opposed it because of the high casualty rate.
<u>Answer:</u>
A stop line could best be described as a solid yellow line found in the middle of an intersection is a FALSE statement.
<u>Explanation:</u>
- A stop line, according to the traffic rules, is actually white in colour. It is usually seen marked at the end of the road, where the road meets the other road.
- The driver is supposed to stop the vehilcle at the stop line every single time and check whether it is safe to move ahead by making sure that there is no pedestrian or other vehicle moving across the road.
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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