General science · Difficulty 1
Try this ASVAB-style question.
Choose your answer before opening the explanation. This original practice item is for preparation and does not reproduce an official test question.
Which statement best describes antibody?
- a protein made by the immune system that recognizes a specific target
- rock formed when molten material cools and solidifies
- a substance that donates hydrogen ions in water and has a pH below 7
- cell division that produces two genetically similar daughter cells
Reveal answer and explanation
a protein made by the immune system that recognizes a specific target
antibody is a protein made by the immune system that recognizes a specific target. After vaccination, certain proteins help recognize a pathogen.