Question

Two species have a relationship with one another in an ecosystem. Suppose one of these two species goes extinct. Which type of relationship did the two have if the surviving species population increases after the other goes extinct?

Answer 1

Predator-Prey Relationship

Step-by-step explanation:

If the extinction of one of the species leads to an increase in the population of the other species, then the relationship must be a predator-prey relationship, because the now-extinct species was keeping the now-increasing population of the other species in check.

Answer 2

Commensalism

Step-by-step explanation:

Commensalism - relationship in which one organism benefits while the other is neither helped nor harmed.

Because there were two species we can see that there was not a harmful (parasitism) relationship, nor Mutualism because when one species died the other remained safe.