Classification & Dichotomous Keys

What is the most specific (smallest) level of classification?

• family

• domain

• order

• species

The 8 levels of classification, from most broad to most specific, are

• Domain, Genus, Family, Order, Class, Phylum, Kingdom, Species

• Domain, Species, Kingdom, Genus, Phylum, Family, Class, Order

• Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

• Order, Kingdom, Species, Domain, Phylum, Family, Class, Genus

The grizzly bear is most closely related to the

• black bear

• panda bear

• fox

• sea star

Tags

NGSS.MS-LS4-2

The taxon (group) with the largest amount of organisms grouped together is

• genus

• species

• family

• domain

What step do we always start with when using dichotomous keys?

• 1

• 2

• 3

• 4

The science of classifying and naming organisms is

• anatomy

• grouping

• genetics

• taxonomy

A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?

• Juniper

• Pine

• Spruce

• Fir

Tags

NGSS.MS-LS4-2

An illustration and a dichotomous key are given. What is the correct classification for this organism?

• Class Insecta

• Order Amblygygi

• Order Scorpiones

• Order Araneae

Tags

NGSS.MS-LS4-2

The classification system most commonly used today separates organisms into ____kingdoms.

• 4

• 5

• 6

• 7

A scientist who organizes living things according to their characteristics is called a ____________.

• geneticist

• taxonomist

• anatomist

• archaeologist