Skin penetration not seen in -
Taenia saginata
Nectator americanus
Ankylostoma duodenale
Strongyloides stercoralis
Ans. is 'a' i.e., Taenia saginata Parasites enter through skinFrom soilo Ancylostoma duodenaleo Ancylostoma brazilienseo Ancylostoma caninumo Nector americanso Strongyloides stercoral iso Strongyloides fullebomiFrom watero Acanthamoebao Schistostoma
Helminthology