Final answer:
The position appointed by the president to advise on national defense is a cabinet member.
Step-by-step explanation:
The position appointed by the president that advises the president on matters of national defense is a cabinet member. The cabinet is composed of various heads of executive departments, such as the Secretary of Defense, who is responsible for advising the president on defense policies and strategies. They provide expertise and recommendations to the president to ensure the security and protection of the nation.
Learn more about Advisors on national defense