Answer:
She will add color dye to antibodies, and the antibodies will attach to the antigen of the pathogen.
Explanation:
Immunostaining is the process where the antibodies for a specific pathological antigen is combined with fluorescent dye or any other indicator, like enzyme. Fluorescein are common staining materials used because it is easily detectable under UV light. This antibody coated with indicator thus bind to the specific pathogen or protein and help in its identification. Also the pathogenic cell fixation is done to facilitates clear and precise identification.
The top layer carry out photosynthesis
I think the answer is, Echocardiograph :)
