Final answer:
The statement is true, as sucking is a reflex present at birth and necessary for newborns to consume milk, whereas suckling develops slightly later and involves coordinated actions.
Step-by-step explanation:
The statement 'SUCKING develops before SUCKLING' is True. Sucking is a reflex that newborns are born with, and it enables them to suck and swallow milk. On the other hand, suckling is a more complex process that involves both sucking and the coordination of breathing while drawing milk from a breast or bottle, and it develops shortly after sucking. Therefore, sucking is a more primitive reflex and is present before suckling.