What term describes an infant's ability to understand that objects continue to exist when they cannot be seen?

The Piagetian term for understanding that objects and events continue to exist, even when they cannot directly be seen, heard, or touched. object permanence

Texas’ gulf coastal plains are the western extension of the coastal plain extending from the atlantic ocean to beyond the rio grande. its characteristic rolling to hilly surface covered with a heavy growth of pine and hardwoods extends into east texas. in the increasingly arid west, however, its forests become secondary in nature, consisting largely of post oaks and, farther west, prairies and brushlands.