Apicomplexan alveolates in which all components of the apical complex are present, with the microtubular conoid consisting of a complete hollow, truncate cone; sexual and asexual reproduction generally occurs followed by sporogony and formation of oocysts with infective sporozoites; cellular motility by body flexion, gliding, undulation of longitudinal ridges, or flagellar movement; flagella found only in microgametes of some taxa; pseudopodia rarely formed for feeding.