Explain me about taxanomical aid key

Taxonomical aids are the collections of samples or preserved organisms which help in extensive research for the identification of various taxonomic hierarchy. Classifying organisms into various categories needs a lot of field and laboratory study. This is so important because taxonomic categorization helps in identifying many organisms necessary in various fields like agriculture, industries, bioresources, etc.

The taxonomical Aids are the main source which helps us in studying the relative level of a group of organisms, their taxonomic hierarchy and the taxonomic rank.

Taxonomical Aids are required for:

1. Taxonomic studies of various species of plants, animals, and other organisms, which require correct classifications and identification.
2. Identification of organisms require laboratory and field studies.
3. Museum.
4. Herbarium.
5. Zoological Parks.
6. Botanical Gardens.