7 Classifying 1

The MAIN reason that scientists classify living things is that classifying helps scientists to:

• know where to find an organism

• identify (name) and study organisms

• know how a particular organism might behave

• know how to dissect an organism

Which scientist developed our system of classification?

• Linnaeus

• Einstein

• Darwin

• Nobel

Taxonomy is the study of how organisms:

• are made of cells

• are related to each other

• are classified and described

• interact with each other

What TOOL do scientists use to classify organism based on their characteristics?

• scientific name

• branching chain

• binomial key

• dichotomous key

What statement would NOT be good for a dichotomous key? The organism:

• has a set of feelers on its head

• has leaves arranged in groups of three

• is ugly

• has six legs

In a dichotomous key, each question contains ______ choices.

• 1

• 2

• 3

• 4

Use the dichotomous key above to classify the unknown organism in the picture

• Kentuckyus
• Californius
• WalaWala
• Beverlus

Hikers found a tree that has large brown cones and single sharp needles. What species of tree is it?

• Juniper

• Pine

• Spruce

• Fir

To what order does an insect with two pairs of scaly wings belong?

• Coleoptera

• Heteroptera

• Diptera

• Lepidoptera

An arachnid has a segmented abdomen, long legs, a tail with no stinger. Which arachnid is it?

• Whip Scorpion

• Wind Scorpion

• Daddy long legs

• Scorpion