Leaves Dichotomous Keys

Simple leaves have a single leaf on a petiole, or stem, while compound leaves have more than one leaflet on a petiole. This unknown leaf can be identified using the dichotomous key. Which tree does the unknown leaf come from?

• Ungnadia speciosa

• Sophora secundiflora

• Salix nigra

• Quercus laceyi

The classifications of four trees are shown in the table.

Which two trees are the most closely related?

• Taiwan beech and Taiwan catkin yew

• Taiwan catkin yew and lodgepole pine

• Lodgepole pine and Japanese maple

• Japanese maple and Taiwan beech

Tags

NGSS.MS-LS4-2

The relationships among different orders of millipedes are shown in the cladogram. Based on this cladogram, which statement best describes relationships among millipede orders?

• Stemmiulida is more closely related to Merocheta than Penicillata is to Merocheta.

• Spirostreptida is more closely related to Glomerida than Sphaerotheriida is to Glomerida.

• Polyzoniida is more closely related to Glomeridesmida than Sphaerotheriida is to Glomeridesmida.

• Merocheta is more closely related to Glomeridesmida than Glomerida is to Glomeridesmida.

Tags

NGSS.MS-LS4-2

Simple leaves have a single leaf on a petiole, or stem, while compound leaves have more than one leaflet on a petiole. This unknown leaf can be identified using the dichotomous key. Which tree does the unknown leaf come from?

• Ungnadia speciosa

• Sophora secundiflora

• Salix nigra

• Quercus laceyi

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

• physical features
• weather patterns
• environment
• diet

Tags

NGSS.MS-LS4-2

The first part of a scientific name is an organism's _______________ and the second part is its ________________.

• species, genus
• phylum, order
• class, spices
• genus, species

What is a dichotomous key used for in science?

• To organize biomes
• Classify organisms
• Identify bacteria only
• None of these

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

• Class Insecta
• Order Amblygygi
• Order Araneae
• Order Scorpiones

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