The B-cell receptor (BCR) <span> is composed of </span>immunoglobulin molecules<span> that form a type 1 </span>receptor protein, which is <span>usually located on the </span>outer surface<span> of </span>B cells. <span>The immunoglobulin is part of the </span>B cell receptor<span> (BCR), which allows a </span>B cell<span> to reveal when a specific antigen is present in the body and triggers </span>B cell<span> activation.</span>
Answer:
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PENIS
Hi there,
The answer to that fill-in the blank is Liver.
The Liver is where urea is produced.
It also performs 500 different functions in your body, that is why your liver is important to your body.
Hope this is correct :)
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It is what gives our planet a specific axial tilt, spin and rotation, it is what gives us our present magnetic field.