Question
Which of the following are examples of parasites? Measles , hepatitis B and norovirus Lice. scabies ; and bed bugs MRSA Legionella and Clostridium difficile
Answer
4.6
(297 Votes)
Molly
Master · Tutor for 5 years
Answer
B
Explanation
To answer this question, you have to understand what a parasite is. A parasite is an organism that lives in or on another organism (tasks) and benefits by deriving nutrients at the host's expense. Using that definition, let's analyze each option:Measles, hepatitis B, and norovirus are viruses, which could sometimes be considered to be parasites, cause harm to their hosts, but not very typically referenced this way. Lice, scabies, and bed bugs are all parasites, which benefit at the host's expense. MRSA, handed germs like some Legionella, and Clostridium difficile are bacteria and are not typically considered parasites.Thrush (fungal Candida), ringworm and athletes foot (protective layer) are fungi, not typically called parasites.