Living organisms are classified to arrange them in systematic format. Classification is needed because it allows scientists to identify group and properly name organism.
Museum is an institution where artistic and educational materials are exhibited to the public, the material available in exhibition for study is called collection.
Herbarium is a place where dried and pressed plants, specimens, mounted on sheets are kept systematically. It was established by Luca Ghini.
Zoological parks are places where wild animals are kept in protected environment under human core and which enable us to learn about their food habits and behavior.
Botanical gardens are institutions holding documented collections of living plants for the purpose of scientific research, conservation, display and education.
Species is the lowest category of hierarchy. Taxonomic hierarchy is the arrangement of various categories in successive levels of the biological classification.