I think currently the smallest living organisms are thought to be "viroids", which are smaller than viruses. Scientists are still figuring out exactly what viroids are, and do, but they are able to replicate, which means they are life.
The cell is the smallest organized unit of life. It is the basic structural and functional unit of all living organisms. Cells can work independently or together to carry out essential functions for an organism's survival.
The smallest unit of an organism that carries on the functions of life is a cell. Cells are the basic building blocks of living organisms and are capable of performing activities such as metabolism, growth, and reproduction.
organ, or unit e.g. a flower Population
The cell is the smallest functional and structural unit of all living organisms. Cells perform all the necessary functions for life, including growth, reproduction, and responding to stimuli. Each cell is capable of carrying out specific tasks to contribute to the organism's overall function.
The smallest living things depend on how a living thing is defined. Some biologists do not believe viruses are living organisms because there are no free living forms (all are parasitic) and because they must reply on their host for reproduction. Others believe that, despite this, they have an existence of their own separate to the host and are subject to natural selection and are therefore alive. If you accept viruses are not alive, the smallest living things would be amongst the bacteria or protists. Bacteria are single celled organisms with no cell nucleus while protists have a nucleus. Generally the bacteria are slightly smaller but their sizes overlap. If you accept that viruses are alive, the smallest group are the Parvoviruses between 18 and 26 nanometres. These are single stranded DNA viruses. 1 nm = 1/1000000000 metres or 0.000039 inches.
a cell
a cell
a cell
The cell is the smallest living thing and an atom is the smallest non-living thing.
cell
a cell. it is the basic component off all matters.
The cell.
The microorganism is SAR11, the smallest free living cell known and probably the most abundant organism in the seas
No, a cell is the smallest part of a living organism that can be considered alive.
The smallest living organism is Nanoarchaeum equitans. This minuscule microbe was only just discovered in a hydrothermal vent off the coast of Iceland and its cells are only 400 nanometers across.
Cells are the smallest structures of an organism. (nothing simpler than a cell is considered to be alive)
Difficult question. Viruses can be considered non-living because they lack a cellular structure and cannot metabolize things on their own. Porcine cicovirus is the smallest virus. Nanobes are considered the smallest known organism by most. But there are also Nanoarchaeum and Mycoplasma Gentilalium.