Without the naming and classification system, our list of organisms names would just be a pile of names. This is because without the classification system, animals are just animals and there is no way to put similar animals together. Without the naming system, when you heard an animals name, you wouldn't get any idea at all about the animal.
The kingdom of multicellular organisms that use photosynthesis to create their food are called Plantae.
Answer:
Many scientists use dichotomous keys to identify plants, animals, and other organisms. They may also use dichotomous keys to identify species, or to determine whether a particular organism has been identified and described before. However, dichotomous keys are not used only to identify organisms.