The answer should be both
A symbiotic relationship in which one organism can take
advantage and the other is not harmed The treehopper-ant mutualism becomes
parasitic in years when spiders are rare, because the treehoppers no longer
derive a large benefit but pay a fitness cost.
Raccoons, Fish, and Ducks are secondary consumers. They eat the primary consumers(minnows and aquatic crustaceans).
The danger of blood collecting inside the pericardial sac after blunt chest wall trauma is that: the heart cannot contract as effectively.
