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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The first one because it gives you more information about what to do and where can you do it and son on.
While the other one is bascily for people who already do bird sighting but didn't know there was a day for it.
Hope I helped you lots!!! :3
The correct answer to this open question is the following.
In the analog age, PR practitioners, unconcerned with brand strategy or other aspects of advertising, dealt primarily with media relations.
A public relations professional based its job in the daily relationship with mass media reporters, the elaboration of press bulletins, the organization of Press Conferences or personal interviews with TV and Radio stations, to answer media inquiries, and to collect important information from the company or the client to send it to media slots.
Answer:
IS USED TO PRODUCE THINGS
Explanation:
Answer:
My hypothesis was the large bag would keep the egg the safest because there would be more surface for air resistance to slow the egg down. In the experiment the large bag did not crack the egg and it landed safely, the medium parachute cracked the egg but it was not broken, The small parachute broke the egg completely. The only egg that survived was the egg with the large parachute. the forces applied in the experiment where air resistance and gravitational force. The independent variable in the experiment was the 10ft drop the dependent variable was the egg breaking. the relationship between air resistance and surface area is that the more surface area the more air resistance.
Explanation:
check spelling pls
