A human and bird digestive system similarities

Answer 1

1. Both humans and birds have a digestive system composed of organs such as the mouth, esophagus, stomach, small intestine, and large intestine.
2. Both humans and birds have digestive glands that produce enzymes to aid in the digestion of food. For example, both have salivary glands that produce saliva containing enzymes to break down carbohydrates.
3. Both humans and birds have a stomach that functions to break down food mechanically through muscular contractions and chemically through the action of stomach acid and enzymes.
4. Both humans and birds have a small intestine where most of the digestion and absorption of nutrients takes place. This is where enzymes from the pancreas and bile from the liver are also secreted to aid in digestion.
5. Both humans and birds have a large intestine where water is absorbed and waste material is formed before being eliminated from the body.
6. Both humans and birds have a system of blood vessels surrounding the digestive organs to transport nutrients that have been absorbed into the bloodstream to be transported throughout the body.
7. Both humans and birds have a system of nerves that control the digestive process, including the stimulation of gastric acid production and the release of digestive enzymes.
8. Both humans and birds have a rectum and anus through which solid waste material is eliminated from the body.