Classification Keys

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

Using this dichotomous key, identity the name of the circled fish.

• band-tail puffer
• spotted goat fish
• peacock flounder
• trumpet fish

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

Which of the following characteristics will most likely be helpful in identifying a butterfly using a dichotomous key?

• It migrates north in the summer

• It has long tail

• It likes only certain plants

• Its wings beat very fast in hot weather

Which letter in the picture has two pairs of wings?

• M

• K

• F

• L

Which leaf is shown in the drawing?

• Magnolia

• Redbud

• Sweetgum

• None of the above

Use the dichotomous key to identify this white wildflower

• Starflower

• Chickweed

• Common Strawberry

• Bowman's root

Which organism has feathers but does not swim?

• Duck

• Hen

• Lizard

• Snake