This happens when a detection is accomplished through heuristics. There is no such thing as a heuristic virus. As a technical concept, everything in malware detection is done via heuristics.
Photosynthesis is the process in which plants (also autotrphoic protists and some bacteria) use light energy, from the Sun, to make sugars and organic food molecules from CO2 and water (H2O). This process is essential for the formation of not only energy, but also for the formation of glucose for purposes of structure.
1 photosynthesis A chemical process used by plants and algae to make glucose and oxygen from carbon dioxide and water, using light energy. 2  Oxygen is produced as a by-product of photosynthesis. 3  stomata Tiny holes in the epidermis (skin) of a leaf-usually on the undersides of leaves.hotosynthesis. Plants make food using photosynthesis. This needs light, carbon dioxide and water. It produces glucose, and oxygen as a by-product. Leaves are adapted to carry out photosynthesis.