BI-637
The digestive system
Biology · Secondary 3 · Medium · The digestive system
Food is moved along the oesophagus to the stomach by peristalsis. Which statement best describes peristalsis?
- Diffusion of food molecules through the wall of the intestine.
- Churning of food in the stomach by gastric juice.
- Rhythmic contraction and relaxation of muscles that push food along.
- Active transport of nutrients into the blood vessels.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.