VMS Dichotomous Key (STAAR Formatted)

What is the purpose of a dichotomous key?

• to find a common ancestor
• to show the evolution of organisms
• to show relationships between organisms
• to identify organisms

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

• 1
• 2
• 3
• 4

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

• physical features
• weather patterns
• environment
• diet

The 8 levels of classification, most broad to most specific.

• 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

Term given to describe the 2 name naming system is:

• dichotmous key
• binomial nomenclature
• 2 scientific names
• binomial key

Some students collected leaf samples. The students used the leaf identification key shown below to identify a leaf sample.

Based on the identification key, which type of tree is this sample from?

• Ginkgo

• Honeylocust

• Horse chestnut

• Black maple

A student examines the winged insect shown below.

Based on the dichotomous key, in what order should this insect be classified?

• Mantodea

• Raphidioptera

• Coleoptera

• Lepidoptera