WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms muscle weakness and weight loss (unintentional) including Lack of exercise, Hypocalcemia, and Multiple sclerosis. There are 44 conditions associated with muscle weakness and weight loss (unintentional).
What is the smallest structure in biology? Electrons Electrons are the smallest part of an atom. However, in Biology, the smallest unit is an atom, which make up molecules, compounds, organelles, cells, tissues, orgâ¦ans, organ systems, organisms, populations, spheres, and eventually everything. 1 person found this useful.
Electron micrograph of Pseudomonas with a single flagellum. Bacteria and Archaea are the smallest independently living single-celled organisms on earth. Typical cells range in size from 0.5 to1.0 Âµm in diameter. They all share a common structural feature â they lack a true membrane-bound nucleus. Instead, the DNA lies free in the cell cytoplasm.