Match each description to the type of relationship it represents. tiles *facultative parasitism *obligate parasitism *commensalism *predator and prey pairs *a freshwater amoeba feeds on bacteria in the water. *armillaria fungi grow within a tree's roots, causing the tree to rot, but will survive if the tree dies. *a pseudoscorpion, a type of arthropod, hides under a beetle's wings for protection and transportation, but does not affect the beetle. *rickettsia bacteria can only survive in eukaryotic cells, which are destroyed when the bacteria replicates

A facultative parasite refers to a species, which may resort to parasitic activity, but is not completely dependent on any host for finishing its life cycle. Therefore, the growth of Armillaria fungi inside a tree's roots, making the tree to rot, but will survive even if the tree dies, is an example of facultative parasitism.  

An obligate parasite refers to a parasitic species, which cannot finish its life-cycle in the absence of a suitable host. Therefore, rickettsia bacteria's tendency to surviving only in a eukaryotic cell is an example of obligate parasitism.  

A long-term symbiosis or biological association in which members of one species attain benefits while those of the other species is neither harmed nor are benefited is known as commensalism. Hence, a pseudoscorpion, a kind of arthropod hiding under the wings of beetle for protection and transportation, however, it does not affect the beetle is an example of commensalism.  

Predation refers to a biological association, where one species, the predator, kills and consumes another species, known as prey. A freshwater amoeba feeds on bacteria in the water is an example of predator and prey.  

Facultative parasitism, Armillaria fungi grow within a tree's roots, causing the  tree to rot, but will survive if the tree dies.

The above given fungi is an example of facultative parasitism because in facultative parasitism the organism lives in host and provide harm to it but it is not totally dependent on host. It can survive after the death of host.

Obligate parasitism, Rickettsia bacteria can only survive in eukaryotic cells,

which are destroyed when the bacteria replicates .

The rickettsia bacteria is best example of obligate parasitism because in this type of parasitism, an host is obligatory for the survival and reproduction of organism. They need the host and host cell for the completion of their life cycle.

Commensalism, a pseudoscorpion, a type of arthropod, hides under a beetle's wings  for protection and transportation, but does not affect the beetle.

The commensalism is a type of symbiotic interaction between two organisms, in which one get benefited while other neither get benefit nor harm.

Hence in this example of pseudoscorpion, one organism a pseudoscorpion is getting protection from beetle while beetle is unaffected.

Predator and prey, A freshwater amoeba feeds on bacteria in the water.

Predator pray relationship between two organism, one is benefited while other get harm.

In above example, amoeba uses water bacteria for their food while these bacteria die due to amoeba. So this is obvious predator pray relation.

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