The organization of similar organisms into groups helps scientists understand how Living things are related. It also allows scientists
to communicate about all forms of life. Scientists organize the living world using a
process called taxonomy, which is the science of classifying
organisms based on shared
structures, functions, and relationships to other organisms. Scientists use a branching
system of classification, and over the years, due to new discoveries, the branching
system has changed and grown.
The chart shows how the six kingdoms are organized into three domains. Notice one
domain, Eukarya, contains four kingdoms while the other two domains contain one kingdom
each. One characteristic do scientists use to place organisms in the kingdom Eukarya?
A) They are multicellular.
B) They are multicellular, eukaryotic organisms.
They are composed on one or more eukaryotic cells.
D) These kingdoms contain organisms that are heterotrophic.