Dictionary » O » Organisms



noun, singular: organism

Living things that are capable of reacting to stimuli, reproduction, growth, and homeostasis.


Plants, animals, fungi and microorganisms are examples of organisms. They all consist of monomeric units called cells. Some organisms may function independently or singly (unicellular) whereas others may form many units (multicellular) divided into specialized tissues and organs. Based on cell type, organisms may be divided into prokaryotes and eukaryotes.

Word origin: Greek - organismos, from Ancient Greek organon , meaning "organ, instrument, tool".
Related forms: organismal (adjective), organismic (adjective), organismically (adverb)
See also: superorganism, microorganism.

Please contribute to this project, if you have more information about this term feel free to edit this page

Results from our forum

Database of Multicellular and Unicellular organisms

I'm trying to annotate a list of organisms taken from NCBI for cellularity (unicellular or multicellular). Does any of you ever found a database with association between an organisms' name or taxa and whether it is unicellular or multicellular? ...

See entire post
by sosippus
Thu Jul 03, 2014 1:01 pm
Forum: Bioinformatics
Topic: Database of Multicellular and Unicellular organisms
Replies: 0
Views: 179

Re: holographic origin of life

... performance of some functions. The latter won’t be observed if the organism is self-regulating (self sustained). B) Testing if feeding identical organisms (clones) with the same food in an identical manner and under identical conditions would produce exactly the same amount of waste products ...

See entire post
by minasole
Wed Apr 30, 2014 6:26 pm
Forum: Evolution
Topic: holographic origin of life
Replies: 13
Views: 16500

A question about evolution.

... questions. Was the blueprint of all biological features in the first cell? No, if you believe in evolution from single cell to multicellular organisms. What makes a living thing develop these features? Genetic program. Think of it as a computer program that starts executing at the time of ...

See entire post
by Cat
Sun Apr 20, 2014 3:18 pm
Forum: Evolution
Topic: A question about evolution.
Replies: 1
Views: 658

DNA testing times

... for analysis will depend on how much information the assay provides and how complex a question you are trying to answer. If you are checking two organisms to see whether they are the same species, AND if one of the organisms is known to be a particular species AND if the lab has a proven PCR ...

See entire post
by jonmoulton
Fri Apr 11, 2014 2:47 pm
Forum: Genetics
Topic: DNA testing times
Replies: 2
Views: 908

Please check my answers.

... the outcome. I think the answer is C or perhaps D. 4. How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that ...

See entire post
by moondisyko
Fri Apr 04, 2014 9:00 pm
Forum: Evolution
Topic: Please check my answers.
Replies: 1
Views: 1008
View all matching forum results

This page was last modified 12:57, 16 June 2008. This page has been accessed 120,039 times. 
What links here | Related changes | Permanent link