The non-protein microbial antigens<span> can not stimulate classical </span>T<span> cell response by themselves, but they are able to elicit the production of antibodies, so that is why we call them </span>T<span> or thymus </span>independent antigens<span>. </span>T independent antigens<span> are divided into 2 classes by the mechanism of activating B cells. TI-1 </span>antigen<span>.
</span><span>For most protein antigens, the production of antibodies by B lymphocytes isdependent on stimulation of helper T cells. However bacterial polysaccharides and lipopolysaccharides, and some polymeric proteins, can stimulate B lymphocytes without involvement of helper T cells.
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The Answer IS AEROBIC RESPIRARTION because it’s The breakdown of food to create energy in the presence of oxygen.
Answer:
⇒ D. Blood sugar levels dropping after missing a meal
Explanation:
⇒ Words such as after, caused, because, and then signals response.
Death animals and plants can be preserved in amber like hardened tree resin or in ice, Casts or impressions such as foot prints, Hard body parts like bones shell and leaves can be cover by layers of sediments,
Explanation:
True. it is a virus and that's how viruses reproduce.