Which of the following penetrates through skin and enters the intestine

Which of the following penetrates through skin and enters the intenstine?

Which of the following pathogen generlly enters the small intestine through food and water contaminted with them and migrate to other organs through blood:-

Which one of the following respires only through skin?

Which of the following enters the body through the skin of feet in man if, he walks bare footed in contaminated soil?

Which of the following enters the body through the skin of feet in man if, he walks bare footed in contaminated soil?

Which one of the following animals breathes through the skin ?