Because micro means small and a single celled organism is typically rather small.
Usually a unicellular organism.
what adjectives describe a single celled protozoan?
A microscopic organism consisting of one cell without a nucleus is called a prokaryote. A eukaryote is more complex and has a nucleus.
monera is a single-celled organism. it is very simple and small e.g. bacteria and cyanbacteria
microorganism
it is eubacteria
Microorganism
prokaryotic
A microorganism is any organism too small to be seen without using a microscope. Some are single celled, some are multi-celled.
The most primitive, if you will, organism would be a single-celled microorganism, a member of the domain Archaea. An amoeba is one example of a single-celled microorganism. In some fields of science the terms "primitive" and "advanced" have been replaced with "simple" and "complex" as the word primitive is mainly a reference to evolutionary timescale.
These single celled organisms are called prokaryotes.
what adjectives describe a single celled protozoan?
Requirements/Traits: -Single Celled Microorganism -Prokaryotes -No Nucleus -No Organelles -Extremeophiles
Each living thing is an organism. A microorganism is a single-celled organism or a virus.
A microscopic organism consisting of one cell without a nucleus is called a prokaryote. A eukaryote is more complex and has a nucleus.
monera is a single-celled organism. it is very simple and small e.g. bacteria and cyanbacteria
Protists - a mixed group of single and many celled organisims of all types.
There are many characteristics of microorganisms. Microorganisms are generally single-celled and will tend to thrive in groups of many hundreds.