Final answer:
Reflexes like the sucking reflex are innate behaviors present in newborns that do not require learning. They are vital for survival and development, and they can be categorized into different types based on their nature and the response they elicit.
Step-by-step explanation:
Reflexes are inborn automatic responses to a particular form of stimulation that all healthy babies are born with, known as newborn reflexes. These reflexes, such as the sucking reflex that allows a baby to feed, are classified as innate behaviors and do not require learning or experience to be performed. Reflexes can be spinal or cranial, and are categorized into deep tendon reflexes, such as superficial reflexes, like the Babinski reflex in newborns. As individuals grow, some of these reflexes disappear, since they may not be necessary beyond early stages of development.