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.
Quick Answer. The smallest unit of life is the cell. While there are other building blocks smaller than a cell, such as organelles and quarks, a cell is the smallest structure that functions independently. It can also replicate and perform all the necessary functions of life.