Use the drop-down menus to select the answers that complete the sentences. Hyperthyroidism, a condition in which the thyroid gland is overactive, can be associated with . Hypothyroidism, a condition in which the thyroid gland is underactive, can be associated with . Dwarfism can be caused by inadequate amounts of somatotropin and is associated with . Gigantism can be caused by excessive amounts of somatotropin and is associated with . Menopause is part of the normal aging process and results in .