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In Biology, an organism is any contiguous living system (such as animal, plant, fungus, or micro-organism). In at least some form, all organisms are capable of response to stimuli, reproduction, growth and development, and maintenance of homoeostasis as a stable whole. An organism may either be unicellular (single-celled) or be composed of, as in humans, many trillions of cells grouped into specialized tissues and organs. The term multicellular (many-celled) describes any organism made up of more than one cell.
The term "organism" (Greek ὀργανισμός - organismos, from Ancient Greek ὄργανον - organon "organ, instrument, tool") first appeared in the English language in 1701 and took on its current definition by 1834 (Oxford English Dictionary).
Scientific classification in biology considers organisms synonymous with "life on Earth". Based on cell type, organisms may be divided into the prokaryotic and eukaryotic groups. The prokaryotes represent two separate domains, the Bacteria and Archaea. Eukaryotic organisms, with a membrane-bounded cell nucleus, also contain organelles, namely mitochondria and (in plants) plastids, generally considered to be derived from endosymbiotic bacteria.[1] Fungi, animals and plants are examples of species that are eukaryotes.
More recently a clade, Neomura, has been proposed, which groups together the Archaea and Eukarya. Neomura is thought to have evolved from Bacteria, more specifically from Actinobacteria.[2]
What else can I help you with?
Are individual cells in multi-cellular organisms considered to be alive?
We are multicellular. A multicellular organism contains more than one cell. A single-celled organism might be called 'unicellular'.
What is a single-cell organisim?
A single-cell organism is an organism that consists of only one cell, as opposed to multicellular organisms which are made up of multiple cells. Examples of single-cell organisms include bacteria, archaea, and protists. These organisms are capable of performing all necessary life functions within a single cell.
When can a single cell be called a organism?
I assume you meant single "celled" organism. It is an organism (life form) that consists of only a sigle cell as opposed to most all other lifeforms on earth which are comprised of many (billions) of cells.
What unicellular organism mean?
An organism (a living thing ... plant or animal) that consists of a single cell. Like an amoeba or a paramecium.
An amoeba consists of a single cell and has a nucleus what is an amoeba called?
An amoeba is a type of single-celled organism belonging to the phylum Amoebozoa. It is classified as a protist, specifically a unicellular eukaryote.
When an organism consists of only one cell it is referred to as?
A single celled organism is called unicellular.
What is a living organism that consists of only one cell is called?
A living organism that consists of only one cell is called a unicellular organism. Some examples include bacteria, algae, and protozoa.
Describes an organism that consists of a single cell?
An example of an organism that consists of a single cell is a bacterium. Bacteria are unicellular organisms that can carry out all the processes of life within a single cell, including metabolism, reproduction, and response to environmental stimuli.
What consists of one organism?
Most bacteria are single cell organisms.
Are individual cells in multi-cellular organisms considered to be alive?
We are multicellular. A multicellular organism contains more than one cell. A single-celled organism might be called 'unicellular'.
What is a single-cell organisim?
A single-cell organism is an organism that consists of only one cell, as opposed to multicellular organisms which are made up of multiple cells. Examples of single-cell organisms include bacteria, archaea, and protists. These organisms are capable of performing all necessary life functions within a single cell.
A single cell organism is also called?
A single cell organism is also called a unicellular organism. These organisms consist of only one cell that performs all necessary functions for life. Examples include bacteria, archaea, and some types of protists.
What is a multicellular orginisam?
Any (single) living organism that consists of more than a single cell.
What is an organism that consists of a single cell that does not have a nucleus or a membrane bound organelles?
paramecium
When can a single cell be called a organism?
I assume you meant single "celled" organism. It is an organism (life form) that consists of only a sigle cell as opposed to most all other lifeforms on earth which are comprised of many (billions) of cells.
What is an organism made of a single cell is called?
A Unicellular organism. As opposed to A Multicellular organism.
What unicellular organism mean?
An organism (a living thing ... plant or animal) that consists of a single cell. Like an amoeba or a paramecium.
