[Solved] Specific proteins produced by cells of the immune system in response to the presence of foreign molecules that circulate in the serum and are present in secretions such as saliva are called: A)antigens. B)immunoglobulins. C)cytokines. D)phagogens. Cancer: A disease characterized by the uncontrolled division of abnormal cells in a part of the body. Elderly Women: Female individuals of advanced age, typically considered to be those who are 65 years old or older. Sexually Explicit Films: Movies that display sexual content, including sexual acts, nudity, and erotic themes, intended for adult audiences. College: An institution of higher learning that offers undergraduate and potentially graduate degrees in various fields.