Question

The swallowed food moves downwards in the alimentary canal
because of
(a) force provided by the muscular tongue.
(b) the flow of water taken with the food.
(c) gravitational pull.
(d) the contraction of muscles in the wall of food pipe.


NCERT Class VIII
Science - Exemplar Problems

Chapter 2. Nutrition in Animals

Answer 1

Due to the contraction of muscles in the wall of food pipe, the canal movement takes place and move downwards in the alimentary canal.

This always includes a support and swallows foods that should be moved downwards.

The muscles always try to move downwards that gives proper food contraction in the canal movement.

Answer 2

d option. is the answer "the contraction of muscles in the wall of food pipe