Biological Science (6th Edition)
Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 52, Problem 13PIAT

Deer are hosts of ticks but are not reservoirs of B. burgdorferi— their immune systems detect and kill the bacterium. But a tick with a prior bacterial infection can consume a blood meal from a deer and then bite and infect a human. The fitness effects of a deer on B. burgdorferi can be summarized as:

a. + because the deer supplies the bacterium with food.

b. – because the deer kills the bacteria in its blood.

c. + because the deer feeds and disperses the tick that can then infect a human with the bacterium.

d. – or + depending on whether the deer is the tick’s last host.

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