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Rats carry bacteria that cause bubonic plaque. 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. Predator
B. Parasite
C. Prey
D. Host

Respuesta :

Adenosine
B- Parasite.


The fleas survive by ingesting the blood of warm-blooded animals.
The bacteria survive inside or on another organisms.

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