True possums are found only in Australia and some of the islands of Oceania. They are quite different to the North American opossum. Possums live in trees hollows and logs in their natural habitat, which is bushland, wet sclerophyll forest and tall eucalypt forest, and temperate rainforest.
Dissect definition, to cut apart (an animal body, plant, etc.) to examine the structure, relation of parts, or the like. See more.
Systematically is defined as being done in an orderly way. An example of systematically is how various issues and concerns are checked one-by-one for a person during a physical exam. systematically. In an organized manner.