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 do fleas do?
A) Drink the blood of the animal they bite
B) Live on many kinds of animals and humans
C) Lay eggs in sand or tall grass
D) All of the above

Question 2. What are flea bites usually like?
A) Red bumps that itch
B) Large welts that are painful
C) Small, painless bumps
D) Pustules that are filled with pus

Question 3. What types of fleas are there?
A) Dog flea, cat flea, and human flea
B) Northern rat flea, oriental rat flea, and flea eggs
C) American flea, European flea, and Asian flea
D) All of the above

Question 4. How did the oriental rat flea spread the Bubonic Plague during the Middle Ages?
A) By biting humans and infecting them with the bacteria Yersinia pestis
B) By laying infected eggs in sand or tall grass
C) By carrying the bacteria on its body and transferring it to humans through contact
D) By vomiting infected blood back into humans after biting them

Question 5. What are the characteristics of a flea's body?
A) Hard plates called sclerites, covered with hairs and spines directed backward
B) Compound eyes and a proboscis adapted to feeding
C) Simple eyespots with a single biconvex lens
D) All of the above