Final answer:
The answer to the student's question is b) Eosinophil, Mast with eosinophils being white blood cells involved in allergic responses and mast cells being immune system cells that contain chemicals aiding in immune responses.
Step-by-step explanation:
A type of white blood cell that participates in allergic responses is an eosinophil. Meanwhile, a cell that is a specialized cell of the immune system containing chemicals that assist in the immune response is a mast cell. Therefore, the correct answer to fill in the blanks would be: A(n) eosinophil is a type of white blood cell that participates in allergic responses. A(n) mast cell is a specialized cell of the immune system that contains chemicals that assist in the immune response, which makes the answer b) Eosinophil, Mast.
Eosinophils are granulocytes characterized by cytoplasmic granules that contain a variety of vasoactive mediators such as histamine. They are part of the immune response during injury, infection, and especially allergies where they produce inflammatory mediators that recruit more leukocytes. On the other hand, mast cells, which also produce inflammatory molecules such as histamine, are crucial in the immediate hypersensitivity reactions and play a significant role in allergies and asthma.