Basically anything that can grow, move, maintain itself, and have a response to stimuli. Remember that this is a HUGE range. It can be both single celled (like a virus) to a multi-celled organism like the human. Basically, as long as it is living, it is an organism.
microscope
Aristotle
animal classifiers classify animals... its their job
A scientist that studies classification is called a Taxonomist. They categorized or classify groups of organisms and they also name the group.
Taxonomists use fossil records, morphological structures, and DNA/genetic information in order to classify organisms into different kingdoms, phylums, and classes.
The facenickleasker experimental experiment of the USA prototype
Scientists study various characteristics of organisms such as their physical features, genetic makeup, behavior, and ecological roles to classify them. This classification system is based on similarities and differences among organisms, and it helps to group them into categories based on their evolutionary relationships.
Over 2000 years ago, a Greek scientist named Aristrotle(AIR uh staht ul) was one of the first people to classify living things.
Scientists classify organisms based on their similarities in physical characteristics, genetic makeup, and evolutionary relationships. This classification system helps to organize and understand the diversity of life on Earth.
taxonomistBotanist
kingdom
Scientists use a system called taxonomy to name and classify organisms. This system categorizes organisms based on their shared characteristics and evolutionary relationships. The basic unit of classification is the species, and organisms are grouped into increasingly larger categories such as genus, family, order, class, phylum, kingdom, and domain.