1. Directions

You will read passages on the topic and then answer questions about them. You may find vocabulary at the end of the test. Read the questions carefully before choosing the correct answers.

2. Questions of the test

Question 1. What are the main characteristics that distinguish true flies from other insects?
A) Two sets of wings and halteres
B) Complete metamorphosis
C) Holometabolous development
D) All of the above

Question 2. What do halteres do in flies?
A) Act as flight sensors
B) Help with wide-angle vision
C) Assist in avoiding predators
D) All of the above

Question 3. What is the only other order of insects that have two true, functional wings plus any form of halteres?
A) Mayflies
B) Strepsiptera
C) Dragonflies
D) Damselflies

Question 4. Which of the following insects are not considered true flies?
A) Mayflies
B) Dragonflies
C) Damselflies
D) All of the above

Question 5. Which of the following is NOT a characteristic of flies?
A) Two wings on the thorax and a pair of halteres
B) Holometabolous metamorphosis
C) Wide-angle vision
D) Presence of a single pair of wings