<prompt> Which organism has a special predilection towards placenta?Neisseria meningitidesHaemophilus influenzaeMoraxella catarrhalisBrucella  <response>: Brucella has special predilection towards placenta, probably due to the presence in it of erythritol, which has a stimulating effect on brucella in culture Ref: Textbook of microbiology; Ananthanarayan and panikers; 10th edition; Pg:347 