Levels of Classification

Which factor best explains by classification systems change over time?

• changing environments lead to reclassification

• increased plant species lead to reclassification

• changes in food resources leads to reclassification

• increased knowledge of genetics leads to reclassification

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

Which of the following identifies the levels of classification in the 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

A branching diagram uses shared characteristics to classify organisms. On a branching diagram that compares the major kingdoms of the Domain Eukarya, what label might appear to differentiate animals form organisms in the other kingdoms?

• multicellular, move independently

• single-celled, make own food

• multicellular, make own food

• release digestive juices into surroundings

Tags

NGSS.MS-LS4-2

Linnaeus's contributions most helped develop which area of science?

• medicine

• taxonomy

• chemistry

• microbiology

A domain is the broadest level of taxonomic classification. Which of the following is a characteristic of Domain Archaea?

• multicellular

• undergo photosynthesis

• membrane-bound organelles

• able to tolerate extreme conditions

Some living things are able to tolerate life in hot springs. To which of the following domains would these organisms most likely belong?

• Archaea

• Protista

• Eukarya

• Bacteria

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

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.

The pictures show four types of organisms. Which of these would you most expect to be true if these organisms were classified by their physical characteristics only.

• organisms 1 and 3 would be in the same species

• organisms 2 and 4 would be in the same genus

• organisms 1 and 3 would be more closely related than organisms 2 and 4

• organisms 2 and 4 would be more closely related than organisms 1 and 3

Tags

NGSS.MS-LS4-2

Taxonomy is the science of describing, classifying, and naming living things. Which classification includes all protists, fungi, plants, and animals?

• Phylum Chordata

• Class Mammalia

• Domain Eukarya

• Order Carnivora

The three domains, Bacteria, Archaea, and Eukarya, represent very different forms of life. Domain Bacteria is made up of prokaryotes. Domain Eukarya is made up of eukaryotes. Which of the following statements correctly describes forms of life found in Domain Eukarya?

• The organisms are single or mulitcellular and have complex cell structures.

• These one-celled organisms live in harsh environments, such as the deep ocean and hot springs.

• The organisms have cell walls, reproduce by cell division, and live and on the human body.

• These unicellular organisms lack a nucleus in their cells and are found in almost any environment.

Tags

NGSS.MS-LS1-1