The Test. Tests for Epstein-Barr virus (EBV) antibodies are used to help diagnose infectious mononucleosis (mono) if a person is symptomatic but has a negative mono test.he Test. Tests for Epstein-Barr virus (EBV) antibodies are used to help diagnose infectious mononucleosis (mono) if a person is symptomatic but has a negative mono test.
leaf scar. (botany). A mark on a stem, formed by secretion of suberin and a gumlike substance, showing where a leaf has abscised. 1  Facebook. 2  Twitter.
Answer. A Large holes in leaves-or leaves that have been eaten away altogether-are one of the most common signs of a pest invasion. Here are some of the possible culprits:Slugs and snailsIf you see slimy or shiny trails on the leaves, slugs or snails are the culprits.nswer. A Large holes in leaves-or leaves that have been eaten away altogether-are one of the most common signs of a pest invasion. Here are some of the possible culprits:Slugs and snailsIf you see slimy or shiny trails on the leaves, slugs or snails are the culprits.