Food Digestion
Function:
Allows the organism to make the most of a single meal
- Nutrients to the body
- Food is chewed and swallowed and goes to the stomach.
- The stomach continues the breakdown of foods into monomers (proteins to amino acids).
- Chyme, the resulting soupy mush, that is released into the small intestines
- Small, fingerlike structures in the small intestines called cilli absorb nutrients in the chyme.
Allows the organism to make the most of a single meal
- Times of famine
- Frees up time taken up by foraging
Respiratory and Circulatory
Function:
- Make sure the the entire body receives the oxygen it needs to continue functioning normally
- Deoxygenated blood is pumped from the heart into the lungs
- The oxygen in the lungs is exchanged for the carbon dioxide in the blood
- The body rids itself of waste and refuels at the same time
- The oxygenated blood returns to the heart to be pumped back throughout the body.