Question

4. What are antibodies?​

Answer 1

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An antibody is a protein produced by the body's immune system when it detects harmful substances, called antigens. Examples of antigens include microorganisms (bacteria, fungi, parasites, and viruses) and chemicals.

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Answer 2

Answer:

an Antibodies also known as an immunoglobulin , is a large, Y-shaped protein used by the immune system to indentify and nutrelize forgein objects such as pathogenic bacteria and viruses. The antibody recognises a unique molecule of the pathegon called an antigen.