There are 3 recognized domains, or broadest classification of organism. These are Bacteria, Archaea, and Eukarya. In the simplest case, an organism can be a bacteria, a DNA molecule containing genetic information wrapped in a protective plasma membrane.

Here are 10 examples of organisms across various domains and kingdoms: Escherichia coli ( E. coli ) : A common bacterium found in the intestines of many animals, including humans. It is often used in scientific research.

There are billions to trillions of different types of organisms living on our planet Earth. Based on the different criteria all these organisms are classified into different groups. Every type of species of organism varies from one another.

Today we’ll be looking at 10 of the largest organisms in the world, and learning a little bit about what makes each one unique. Source: wikimedia.org. The Lion’s Mane Jellyfish is the largest species of jellyfish in the world, and a truly awe-inspiring organism.