Question: Which arboreal herbivorous marsupial native to Australia whose close living relatives are the wombats does Springwood State High School have?

Context paragraphs:
Guan (bird): The guans are a number of bird genera which make up the largest group in the family Cracidae.  They are found mainly in northern South America, southern Central America, and a few adjacent Caribbean islands.  There is also the peculiar horned guan ("Oreophasis derbianus") which is not a true guan, but a very distinct and ancient cracid with no close living relatives (Pereira "et al." 2002).

Spotted elachura: The spotted elachura or spotted wren-babbler ("Elachura formosa") is a species of passerine bird found in the forests of the eastern Himalayas and Southeast Asia.  In the past it was included in the babbler genus "Spelaeornis" as "S. formosus", but molecular phylogenetic studies in 2014 provided evidence that it was distinct from the babblers and part of a basal lineage (one that diverged early) with no other close living relatives within the passerine bird clade Passerida.  This led to the creation of a new family, Elachuridae, to accommodate just one species (a monotypic taxon).

Springwood State High School: Springwood State High School is a Queensland state school located in the Logan City suburb of Springwood.  The school opened in 1977 to Grade 8 students with its official opening in 1978.  Springwood State High School is situated on 55 acre of bushland and includes a lagoon which is used by senior Biology students.  In addition to this, the school is home to many native animal species including Koalas, Wallabies and many species of birds.

Wakaleo vanderleuri: Wakaleo vanderleuri is a species of marsupial lion that lived in Australia during the Miocene (about 16 to 10million years ago).  Being a marsupial, it is not closely related to true cats; its closest living relatives are wombats and the koala.  This diprotodont is hypothesized to have been an omnivore, eating significant amounts of meat, perhaps more like a bear in diet and habit than like an actual lion.  It lacked large canine-like fangs, producing some controversy regarding just how much it actually preyed on living animals.  The meat-eating hypothesis is based largely upon the morphology of its molar teeth.  The species is believed to have been able to hunt by leaping from trees onto its prey.

Koala: The koala ("Phascolarctos cinereus", or, inaccurately, koala bear ) is an arboreal herbivorous marsupial native to Australia.  It is the only extant representative of the family Phascolarctidae and its closest living relatives are the wombats.  The koala is found in coastal areas of the mainland's eastern and southern regions, inhabiting Queensland, New South Wales, Victoria, and South Australia.  It is easily recognisable by its stout, tailless body and large head with round, fluffy ears and large, spoon-shaped nose.  The koala has a body length of 60 – and weighs 4 – .  Pelage colour ranges from silver grey to chocolate brown.  Koalas from the northern populations are typically smaller and lighter in colour than their counterparts further south.  These populations possibly are separate subspecies, but this is disputed.

Rhagophthalmidae: The Rhagophthalmidae are a family of beetles within the larger Elateroidea group that include click-beetles.  Members of this beetle family have bioluminescent organs on the larvae and are closely related to the Phengodidae (glowworm beetles) and Lampyridae (fireflies), and were often included in one of these families as a subfamily—Rhagophthalminae.  Towards the end of the 20th century, they were increasingly seen as a distinct family.  But they might be the only reasonably close living relatives of the mysterious fireflies of genus "Pterotus", and could eventually end up in a Lampyridae subfamily with these.  They were mainly included in the Phengodidae for having similar adaptation for displaying glowing lights.  However, this seems to be due to convergent evolution.  If they indeed belong in the Lampyridae, they are related to a group of families that have either a distinct type of flashing lights (Luciolinae) or rely exclusively or nearly so on pheromones for communication (the others).

Palorchestes: Palorchestes ('ancient leaper or dancer') is an extinct genus of terrestrial herbivorous marsupial of the family Palorchestidae.  The genus was endemic to Australia, living from the Late Miocene subepoch through the Pleistocene epoch (around 11.6 mya – 11,000 years ago), and thought to be in existence for approximately .

Centenary Heights State High School: Centenary Heights State High School is a State High School located in the suburb of Centenary Heights in Toowoomba, Queensland, with an enrolment of around 1500 students (2015) and was one of Queensland's leading high schools with 11 OP's 1 (Overall Position) scored in 2012.  The school is one of several state high schools in Toowoomba, including Toowoomba State High School , Harristown State High School and Wilsonton State High School.

Didunculus: The tooth-billed pigeons are the only genus ("Didunculus") of the subfamily Didunculinae, in the pigeon and dove family, (Columbidae).  It has no close living relatives, but it has been shown to be genetically close to the dodo, and the genus name "Didunculus" means "little dodo".  The jaw and tongue structure, and the superficially parrotlike bill have suggested a relationship to the parrots, but these features have arisen from its specialised diet rather than any real relationship.

Itatiella: Itatiella ulei is a species of moss in the family Polytrichaceae.  It is the only species in the genus Itatiella.  The Polytrichaceae is a common family of mosses that does not have close living relatives.  Its small size and the inflexed leaf apex characterize "Itatiella ulei".  When this species grows directly exposed to sun at high elevations, it presents a similar aspect but can be distinguished based on the distal lamella cells which are single and rhombic.

Supporting paragraphs: Springwood State High School Koala
Answer: Koala