what is antibody
An antibody, also known as an immunoglobulin, is a protein found in the blood or body fluid of an animal.These proteins have special receptors that allow them to bind to foreign substances known as antigens. Their purpose is to identify and neutralize antigens so that they cannot make the host organism sick.n antibody, also known as an immunoglobulin, is a protein found in the blood or body fluid of an animal.