Taxonomy is the science of naming and classifying organisms. It is a great and helpful tool in our world because without it we would not have a worldwide known name for an organism and we would not be able to lump groups of organisms into categories. For instance, we have fruits and meats categories. If I wanted to order a salad that had many different fruits how would I say “fruit salad” without using the category name “fruit?” I could say “I would like a salad with apples, peaches, pineapple, watermelon, grapes etc.” But that would be very tedious, thankfully we have many categories to describe organisms lik fruit, insect, spiders, and meat.
Scientists classify organisms into kingdoms, domains, and other categories but sometimes their classifications aren’t exact. Back a hundred years or so, scientists classified organisms too but now when we look at how they classified them we see that there are a few errors in how they classified them. Nowadays we have more knowledge and new understanding of taxonomy than that of what the scientists of that age knew. In fact, I’m sure that a hundred years from now scientists will see errors in the way scientists today classified things.