Final answer:
The presiding officer in an organization is often advised by a parliamentarian on matters of procedure and order.
Step-by-step explanation:
The presiding officer in an organization is often advised by a parliamentarian on matters of procedure and order. The parliamentarian is typically a trained lawyer who has studied the long and complex rules of the organization. Their role is to provide guidance and advice to the presiding officer to ensure that the organization's proceedings follow the established rules and protocols.