Dichotomous Keys and Classification

The scientific name for an organism is made from the:

• class and family name
• genus and species name
• domain and kingdom name
• kingdom and phylum name

Tool used by a taxonomist to identify an unknown organism is a:

• dichotomous key
• binomial nmenclature
• scientific name
• binomial key

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

What is the name of bird W?

• Certhidea
• Geospiza
• Camarhynchus
• Platyspiza

Tags

NGSS.MS-LS4-2

When using a dichotomous key to identify organisms, what do we look at?

• physical features
• weather patterns
• environment
• diet

Tags

NGSS.MS-LS4-2

A dichotomous key for insects is given. To what order does an insect with two pairs of scaly wings belong?

• Coleoptera
• Heteroptera
• Diptera
• Lepidoptera

A botanist discovers a new plant in the jungle. Which of the
following observations of the plant’s characteristics would be useful in determining its identity with a dichotomous key?

• It was discovered in the summertime
• It is wet from a recent rain storm.
• Its leaves curl up on the edges.
• It is eaten by native jungle ants.

Why do we use scientific names to name organisms instead of relying on common names?

• Because common names vary regionally
• Because everyone understands and speaks Latin
• To make scientists sound smart
• Because they are the most descriptive

What term refers to the two part naming system used in traditional classification?

• binomial nomenclature
• systematics
• cladistic analysis
• taxonomy

Which of the following shows taxonomic groups in order from broadest to most specific?

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