An invasive bullfrog consumes a Taricha newt and dies immediately.What can you say about the toxin?

Question

Quizplus · Accepted Answer

The fact that the bullfrog died immediately after consuming the Taricha newt suggests that the toxin is toxic to general vertebrate predators, which includes the bullfrog and not just the garter snake. If the toxin was specifically toxic only to the garter snake, the bullfrog would not have died from consuming it. The idea that the toxin likely evolved to kill the bullfrog after years of coevolution is possible, but there is no evidence to support this claim. The fact that the bullfrog died immediately suggests that the toxin is an effective antipredator defense, ruling out choice D.

An Invasive Bullfrog Consumes a Taricha Newt and Dies Immediately