What are the duties and responsibilities of IAAF?​

World Athletics is the international governing body for the sport of athletics, covering track and field, cross country running, road running, racewalking, mountain running, and ultra running.

World Athletics is headed by a president. The World Athletics Council has a total of 26 elected members, comprising one president, four vice-presidents (one senior), the presidents of the six area associations, two members of the Athletes' Commission and 13 Council members. Each member of the Council is elected for a four-year period by the World Athletics Congress, a biennial gathering of athletics officials that consists of the Council, Honorary Members, and up to three delegates from each of the national member federations.[9] Chairpersons and member of Committees, which manage specialist portfolios, are also elected by the Congress. There are four committees: the Cross Country Committee, the Race Walking Committee, the Technical Committee, and the Women's Committee.[10] A further three committees were launched in 2019: Development, Governance and Competitions.[11] The governance structure is outlined in the World Athletics Constitution, which may be amended by the Congress.[12]

The World Athletics Council appoints a chief executive officer (CEO), who is focused on improving the coverage of the sport and the organisation's commercial interests. This role was created and merged with the General Secretary role that had existed previously. British former athlete and businessman Jon Ridgeon was appointed to the role in December 2018.[13] Olivier Gers was the first person to officially hold the position in 2016, succeeding the interim CEO/General Secretary Jean Gracia.[14]

In order to give active athletes a voice in the governance of the sport, World Athletics created the Athletes' Commission. Athletes are elected to the commission by other athletes, typically held at the Congress attached to the World Athletics Championships. The commission chairperson and one other athlete of the opposite sex are given voting rights on the Council. The last election was held in October 2019 at the 2019 World Athletics Championships.[15]

Following doping and corruption issues, a Code of Ethics was agreed in 2013 and an Ethics Commission was appointed in 2014.[16] The Council appoints the chairperson from the elected members, and in turn the chairperson appoints a deputy chair.[17] The Ethics Board's scope was limited in 2017 with the creation of the independent Athletics Integrity Unit, headed by Australia's Brett Clothier, to oversee ethical issues and complaints at arm's length.[18]

The International Athletics Foundation is a charity closely associated with World Athletics that engages in projects and programmes to develop the sport. Albert II, Prince of Monaco is the Honorary President and the role of IAF President is held by the World Athletics President.[19] A World Athletics Heritage department was created in 2018 to maintain historic artefacts and display them through a physical gallery in Monaco, a virtual online gallery, and a travelling exhibition. The department also issues World Athletics Heritage Plaques to commemorate locations of historic interest to the sport.[20]

The International Association of Athletics Federations (IAAF) is the worldwide governing body for professional level athletics and track and field. Its purpose is to create and regulate professional level meets and to set the standards for administering competitions, using equipment, and documenting world records.

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .