Question

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 Domain Eukarya?____

Answer 1

Organisms are placed in the Domain Eukarya based on the presence of membrane-bound organelles within their cells, which distinguishes them from organisms in the Bacteria and Archaea domains that lack these structures.

Step-by-step explanation:

One characteristic that scientists use to place organisms in the Domain Eukarya is the presence of membrane-bound organelles within their cells. Unlike prokaryotic cells of the domains Bacteria and Archaea, all eukaryotic cells contain internal structures such as a nucleus and other organelles that are surrounded by membranes. This distinction is fundamental in the organization of life and is central to the taxonomic classification system that categorizes all life into three domains: Bacteria, Archaea, and Eukarya.

The science of classifying organisms, known as taxonomy, helps scientists understand relationships among organisms and communicate about them effectively. The presence of eukaryotic cell structures is a key defining characteristic of the Domain Eukarya, which encompasses organisms as diverse as protists, fungi, plants, and animals.