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Foreign proteins that gain access to the body through cuts and scrapes, through the digestive or circulatory systems, or through the urinary and reproductive systems are called ____.
1. mineralocorticoids
2. immunoglobulins
3. antigens
4. antibodies

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Answer: option 3) antigens

Explanation:

An Antigen is any FOREIGN substance that can enters the body stimulating an immune response. It includes toxins, proteins etc, and can get into the body through ANY openings.

Therefore, antigen is the right answer

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