Question

rats carry bacteria that cause bubonic plague. fleas that bite the rats become infected, and then they transmit the plague bacteria to other animals they bite, including humans. which role do both fleas and bacteria play in this situation?
a. host
b. prey
c. parasite
d. predator

Explanation:

Fleas live on rats and benefit at their expense, and bacteria live in fleas and other hosts to survive and spread. Parasites live on or in a host and harm it while benefiting themselves. Fleas are parasites on rats and bacteria are parasites in hosts like fleas and humans in the context of disease - transmission.

Answer:

C. Parasite