Question 21 MarkWe should always breathe through the mouth and not the nose. The ribcage protects our lungs.AnswerfalseView full question & answer→
Question 31 MarkThe large intestine is longer and broader than the small intestine of the human alimentary canal.AnswerfalseView full question & answer→
Question 41 MarkThe ruminants bring back swallowed grass into their mouth and chew it for some time.AnswertrueView full question & answer→
Question 81 MarkAlveoli increase the surface area for gas exchange.AnswertrueView full question & answer→
Question 101 MarkAll animals use the same body part for breathing.AnswerfalseView full question & answer→