Question

What is the difference between excretion and digestion?

Answer 1

Digestion is a process by which the contents in our food are broken down so that they can be absorbed by our body in order to get energy.

Organs involved in Digestion:

• Salivary glands.
• Pharynx.
• Esophagus.
• Stomach.
• Small Intestine.
• Large Intestine.
• Rectum.
• Accessory digestive organs `to` liver, gallbladder, pancreas.
  
  http://kidshealth.org/en/kids/digestive-system.html

Excretion involves the removal of undigested food contents or metabolic wastes from the body.

Organs involved in Excretion:
In vertebrates this is primarily carried out by:

• Lungs
• kidneys
• skin
• Liver
• Large intestine
• Bladder
  
  https://excretorysystemmiguel.weebly.com/diagrams.html