Which set includes pathogenic artropods

Which set includes pathogenic arthropods 1. Tse-tse fly, mosquito, flea-plague 2. Crab, Culex, spider 3. Anopheles, culex, cray-fish 4. Silver-fish, housefly, sand-fly

Which of the following set includes pathogenic arthropods?

Which one is non-pathogenic ?

Which one is non-pathogenic ?

Which one is non-pathogenic ?

Which set includes Arthropods of economic importance providing useful products to man?

Which set includes neurotic vitamins

Which set includes all vestigial structures of man ?

Which one engulfs pathogens rapidly?

Which disease pathogens are destroyed by microbes?