Classification of LivingThings

Which of the following statements correctly identifies the general characteristics of organisms in a domain?

• Domain Eukarya includes single-celled organisms that lack nuclei

• Domain Bacteria includes multicellular organisms that make their own food

• Domain Archaea includes single-celled organisms that can be found in hot springs and thermal vents

• Domain Protista includes single-celled and simple multicellular organisms that have plantlike or animal-like characteristics

Which of the following statements best defines the term taxonomy?

• a method of describing, classifying, and naming living things

• a tool that uses a series of paired statements to identify organisms

• a diagram that uses shared characteristics to show relationships among species

• a group of organisms that are closely related and can mate to produce fertile offspring

A science class is studying an organism. Using a microscope, the class observed that the cells have nuclei and chloroplasts. In which domain would the organism most likely be classified?

• Bacteria

• Archaea

• Eukarya

• Plantae

How are members of Domain Eukarya different from members of Domain Archaea and Domain Bacteria?

• Members of Domain Eukarya are less complex than the members of Domain Archaea and Domain Bacteria

• Members of Domain Archaea and Domain Bacteria are multicellular, and members of Domain Eukarya are usually single-celled organisms

• Members of Domain Eukarya have cells with membrane-bound organelles, and members of Domain Archaea and Domain Bacteria lack nuclei

• Members of Domain Bacteria and Domain Archaea have structures for making their own food, and members of Domain Eukarya lack these structures.

Which of the following statements correctly describes a kingdom of Domain Eukarya?

• Kingdom Protista includes single-celled organisms that lack nuclei

• Kingdom Plantae includes multicellular organisms that can move independently

• Kingdom Animalia includes multicellular organisms that make their own food.

• Kingdom Fungi includes organisms that get energy by decomposing materials in their environment

Which of the following lists the domains of life?

• Archaea, Bacteria, Protista

• Archaea, Bacteria, Eukarya

• Animalia, Plantae, Protista, Fungi

• Animalia, Plantae, Fungi, Eukarya

What are the two parts of a scientific name?

• genus and species

• phylum and class

• domain and genus

• domain and kingdom

As Carolus Linnaeus was growing up, he was interested in botany and in the names of plants. His ideas have influenced generations of biologists. How did Carolus Linnaeus contribute to modern classification systems?

• He identified the three domains of life

• He developed two-part scientific names

• He standardized common names of organisms.

• He used chemical characteristics to classify organisms

Which of the following identifies the levels of classification in correct order?

• domain, kingdom, phylum, class, order, family, genus, species

• genus, species, domain, kingdom, phylum, class, order, family

• domain, kingdom, genus, species, phylum, class, order, family

• genus, species, phylum, class, order, family, domain, kingdom

Why do we classify living things?

• To keep information private.

• To make finding information easier.

• To confuse people.

• To make animals healthier.