Question

7/25 antibodies are ____________ that help our immune system function. proteins lipids nucleic acids carbohydrates

Explanation:

Antibodies are specialized proteins produced by the immune - system to recognize and neutralize foreign substances like pathogens. They have a specific structure that allows them to bind to antigens. Lipids are mainly involved in energy storage and membrane formation, nucleic acids carry genetic information, and carbohydrates are energy sources and have structural roles, but none of these are antibodies.

Answer:

A. proteins