Match each description to the type of relationship it represents. 1. predator and prey
2. obligate parasitism
3. commensalism
4. facultative parasitism

-1- Rickettsia bacteria can only survive in eukaryotic cells, which are destroyed when the bacteria replicates.
-2- A freshwater amoeba feeds on bacteria in the water.
-3- A pseudoscorpion, a type of arthropod, hides under a beetle's wings for protection and transportation, but does not affect the beetle.
-4- Armillaria fungi grow within a tree's roots, causing the tree to rot, but will survive if the tree dies.