ECTOPARASITES

(A BIO 120 Laboratory Homework Exercise)

ANSWER THE FOLLOWING QUESTIONS REGARDING 3 COMMON HUMAN ECTOPARASITES

Answers to these questions can be found at the following web sites:

http://www.uky.edu/Agriculture/Entomology/entfacts/efstruc.htm  

(to answer questions concerning "Management of Head Lice" and "Ticks and Disease")

http://ohioline.osu.edu/lines/hyg-list.html (to answer questions concerning "Fleas")

Read the information on head lice and answer the following questions: 

1. It is estimated that         % of elementary school children are treated for head lice each year. 

2. What is a “nit”?

3. What are the four key steps to eliminating head lice and preventing their return?  (Summarize)

Read the information on ticks and answer the following questions:

1. What are the 2 most common species of tick in Kentucky?

2. What is the most definitive early symptom that occurs when a person is infected with Lyme disease? with Rocky Mountain Spotted Fever?

3. How long does a tick need to be feeding before it can potentially transmit Lyme disease to a person?

4. What’s the best way to remove an attached tick?

Read the information on fleas and answer the following questions:

1. What does a larval (“baby”) flea look like?

2. What do larval fleas feed upon?

3. Give two human diseases that are transmitted by fleas.