oxygen from the air around us, and sunlight
Oxygen does not break down our food, and neither does sunlight.
The physical break down of food refers to the internal process.
For example, Mastication and the secretion of bile and acids to aid digestion.
haustra and ileocecal valve.
StomachSmall intestine
The process begins when you chew, that is the first physical breakdown which happens alongwith chemical breakdown with the help of the saliva. the other happens in your stomach, where the food is broken down to form a semi liquid type of substance.
It is divided into three anatomical regions
The epigastric region.
What is the dum physical regions
There are 9 physical regions.
Oral cavity and stomach
Physical, economic, and cultural regions are alike because they are located within a specific territory.
The mouth (by chewing) and the stomach (by gastric motion).
Human regions are made (created) by humans, physical regions are made by nature.
It is a huge country, naturally it will be divided into physical regions.
is a portion of a region divided by natural boundries, such as, rivers, mountins,etc.physical regions- regions defined by their location, landforms, and climate.