Organism Identification-Dichotomous Key

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

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

• Migrates north every spring.

• Hangs on branches to rest.

• Flutters wings faster on hot days.

• Hind wings have tail extensions.

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

• Diptera

• Lepidoptera

• Heteroptera

• Coleoptera

Which arachnid has the student found?

• Daddy Long Legs

• Scorpion

• Wind scorpion

• Whip scorpion

What is the correct classification for this organism?

• Class Insecta

• Order Amblygygi

• Order Araneae

• Order Scorpiones

Which of the following is an accurate observation of the structures of a fiddler crab? Fiddler crabs have -

• five pairs of walking legs on each side.

• an enlarged propodus on both front legs.

• a pair of eyes on stalks at the top of the body.

• two pairs or chelipeds for a total of four.