Question

X, Y, Z and P are involved in the process of digestion. Digestion begins in X and from X, food passes through P to Y the partially
digested food coming from Y enters into a long and narrow tube Z.
i. What are X, Y, Z and P?
ii. The movement of food particles in P is called __________________________ .

Answer 1

Answer:

I) X-- Mouth

Y--Stomach

Z--Duodenum a part of small intestine

P-- Oesophagus

ii) Peristalsis