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Test Your Understanding: Secret Code Game—
Discovering Dichotomous Keys (student handout)
Name: Class: Date:
Step Characteristic Identification
1a Does not have wings Order Siphonaptera
1b Has wings Go to 2
2a Has one pair of wings Order Diptera
2b Has two pair of wings Go to 3
3a Wings are triangular Order Ephemeroptera
3b Wings are not triangular Go to 4
4a Wing pairs have a similar size and shape Order Isoptera
4b Wing pairs do not have a similar size and shape Order Zoraptera
1. Based on the dichotomous key, in which order does the insect belong?
F Diptera
G Isoptera
H Ephemeroptera
J Zoraptera
The correct answer is G.
Released STAAR questions from the State of Texas can be found on the TEA website.
https://tea.texas.gov/student-assessment/testing/staar/staar-released-test-questions
