Final answer:
Veterinary Assistants may administer vaccinations and perform dental cleanings, but the diagnosis of illnesses and development of treatment plans are duties performed by licensed veterinarians.
Step-by-step explanation:
In the veterinary field, a Veterinary Assistant (VA) plays a support role and his or her duties can be varied. Among the tasks Veterinary Assistants may perform are administering vaccinations and performing dental cleanings under the supervision or direction of a licensed veterinarian. However, Veterinary Assistants are not qualified to diagnose illnesses or develop treatment plans; these tasks are strictly reserved for licensed veterinarians.
Veterinarians take on a more advanced and comprehensive role than Veterinary Assistants. They are medical professionals who can diagnose and treat various conditions in animals, including pets, livestock, and those in zoos and laboratories. Veterinarians are also responsible for developing individualized treatment plans for each animal in their care.