Nutrition in Animals

Mark the following statements as True or False. If false, write
the correct statements.
(a) Tongue is attached to the roof of the mouth cavity at the
back.
(b) The large intestine is longer and wider than the small
intestine of the human alimentary canal.
(c) Mucus protects the stomach lining from damage.
(d) All heterotrophs have a similar basic process of nutrition